Point Helen Tides June 2025 | Tide Charts & Tables | Knight Island, AK

Point Helen Tide Chart for (Sun) June 1, 2025

Point Helen tide chart for Sunday, June 1, 2025
Point Helen tides for Jun 1st, the sunrise is 4:38am-11:01pm and the tide times are H 5:30am 10'5" L 12:15pm -0'5" H 7:16pm 9'3" .

Point Helen Tide Chart for (Mon) June 2, 2025

Point Helen tide chart for Monday, June 2, 2025
Point Helen tides for Jun 2nd, the sunrise is 4:36am-11:03pm and the tide times are L 12:38am 3'11" H 6:37am 9'3" L 1:06pm 0'7" H 8:14pm 9'3" .

Point Helen Tide Chart for (Tue) June 3, 2025

Point Helen tide chart for Tuesday, June 3, 2025
Point Helen tides for Jun 3rd, the sunrise is 4:35am-11:04pm and the tide times are L 1:45am 3'11" H 7:54am 8'4" L 1:59pm 1'6" H 9:05pm 9'6" .

Point Helen Tide Chart for (Wed) June 4, 2025

Point Helen tide chart for Wednesday, June 4, 2025
Point Helen tides for Jun 4th, the sunrise is 4:34am-11:06pm and the tide times are L 3:02am 3'6" H 9:08am 7'11" L 2:55pm 2'5" H 9:48pm 9'9" .

Point Helen Tide Chart for (Thu) June 5, 2025

Point Helen tide chart for Thursday, June 5, 2025
Point Helen tides for Jun 5th, the sunrise is 4:32am-11:07pm and the tide times are L 4:18am 2'9" H 10:13am 7'9" L 3:54pm 3'0" H 10:26pm 10'2" .

Point Helen Tide Chart for (Fri) June 6, 2025

Point Helen tide chart for Friday, June 6, 2025
Point Helen tides for Jun 6th, the sunrise is 4:31am-11:09pm and the tide times are L 5:15am 1'9" H 11:12am 7'11" L 4:48pm 3'5" H 11:01pm 10'6" .

Point Helen Tide Chart for (Sat) June 7, 2025

Point Helen tide chart for Saturday, June 7, 2025
Point Helen tides for Jun 7th, the sunrise is 4:30am-11:10pm and the tide times are L 5:59am 0'10" H 12:06pm 8'2" L 5:36pm 3'8" H 11:36pm 10'10" .

Point Helen Tide Chart for (Sun) June 8, 2025

Point Helen tide chart for Sunday, June 8, 2025
Point Helen tides for Jun 8th, the sunrise is 4:29am-11:11pm and the tide times are L 6:37am 0'0" H 12:56pm 8'6" L 6:18pm 3'10" .

Point Helen Tide Chart for (Mon) June 9, 2025

Point Helen tide chart for Monday, June 9, 2025
Point Helen tides for Jun 9th, the sunrise is 4:28am-11:13pm and the tide times are H 12:12am 11'2" L 7:12am -0'7" H 1:41pm 8'10" L 6:56pm 3'10" .

Point Helen Tide Chart for (Tue) June 10, 2025

Point Helen tide chart for Tuesday, June 10, 2025
Point Helen tides for Jun 10th, the sunrise is 4:28am-11:14pm and the tide times are H 12:48am 11'5" L 7:47am -1'0" H 2:22pm 9'1" L 7:34pm 3'10" .

Point Helen Tide Chart for (Wed) June 11, 2025

Point Helen tide chart for Wednesday, June 11, 2025
Point Helen tides for Jun 11th, the sunrise is 4:27am-11:15pm and the tide times are H 1:25am 11'8" L 8:23am -1'4" H 3:00pm 9'3" L 8:11pm 3'11" .

Point Helen Tide Chart for (Thu) June 12, 2025

Point Helen tide chart for Thursday, June 12, 2025
Point Helen tides for Jun 12th, the sunrise is 4:26am-11:16pm and the tide times are H 2:02am 11'9" L 9:00am -1'6" H 3:37pm 9'3" L 8:50pm 3'11" .

Point Helen Tide Chart for (Fri) June 13, 2025

Point Helen tide chart for Friday, June 13, 2025
Point Helen tides for Jun 13th, the sunrise is 4:26am-11:17pm and the tide times are H 2:39am 11'9" L 9:38am -1'7" H 4:15pm 9'3" L 9:31pm 3'11" .

Point Helen Tide Chart for (Sat) June 14, 2025

Point Helen tide chart for Saturday, June 14, 2025
Point Helen tides for Jun 14th, the sunrise is 4:25am-11:17pm and the tide times are H 3:16am 11'7" L 10:17am -1'6" H 4:54pm 9'2" L 10:14pm 3'10" .

Point Helen Tide Chart for (Sun) June 15, 2025

Point Helen tide chart for Sunday, June 15, 2025
Point Helen tides for Jun 15th, the sunrise is 4:25am-11:18pm and the tide times are H 3:55am 11'2" L 10:58am -1'3" H 5:35pm 9'2" L 11:03pm 3'9" .

Point Helen Tide Chart for (Mon) June 16, 2025

Point Helen tide chart for Monday, June 16, 2025
Point Helen tides for Jun 16th, the sunrise is 4:24am-11:19pm and the tide times are H 4:39am 10'7" L 11:40am -0'9" H 6:21pm 9'3" L 11:56pm 3'7" .

Point Helen Tide Chart for (Tue) June 17, 2025

Point Helen tide chart for Tuesday, June 17, 2025
Point Helen tides for Jun 17th, the sunrise is 4:24am-11:19pm and the tide times are H 5:32am 9'9" L 12:24pm -0'2" H 7:11pm 9'7" .

Point Helen Tide Chart for (Wed) June 18, 2025

Point Helen tide chart for Wednesday, June 18, 2025
Point Helen tides for Jun 18th, the sunrise is 4:24am-11:20pm and the tide times are L 12:55am 3'2" H 6:44am 8'10" L 1:11pm 0'7" H 8:02pm 10'1" .

Point Helen Tide Chart for (Thu) June 19, 2025

Point Helen tide chart for Thursday, June 19, 2025
Point Helen tides for Jun 19th, the sunrise is 4:24am-11:20pm and the tide times are L 2:00am 2'7" H 8:09am 8'3" L 2:04pm 1'7" H 8:52pm 10'9" .

Point Helen Tide Chart for (Fri) June 20, 2025

Point Helen tide chart for Friday, June 20, 2025
Point Helen tides for Jun 20th, the sunrise is 4:24am-11:20pm and the tide times are L 3:13am 1'8" H 9:30am 8'2" L 3:05pm 2'5" H 9:42pm 11'5" .

Point Helen Tide Chart for (Sat) June 21, 2025

Point Helen tide chart for Saturday, June 21, 2025
Point Helen tides for Jun 21st, the sunrise is 4:25am-11:20pm and the tide times are L 4:25am 0'5" H 10:43am 8'4" L 4:11pm 3'0" H 10:31pm 12'1" .

Point Helen Tide Chart for (Sun) June 22, 2025

Point Helen tide chart for Sunday, June 22, 2025
Point Helen tides for Jun 22nd, the sunrise is 4:25am-11:20pm and the tide times are L 5:29am -0'9" H 11:52am 8'9" L 5:15pm 3'3" H 11:22pm 12'8" .

Point Helen Tide Chart for (Mon) June 23, 2025

Point Helen tide chart for Monday, June 23, 2025
Point Helen tides for Jun 23rd, the sunrise is 4:25am-11:20pm and the tide times are L 6:24am -2'0" H 12:57pm 9'3" L 6:14pm 3'3" .

Point Helen Tide Chart for (Tue) June 24, 2025

Point Helen tide chart for Tuesday, June 24, 2025
Point Helen tides for Jun 24th, the sunrise is 4:26am-11:20pm and the tide times are H 12:15am 13'1" L 7:14am -2'9" H 1:54pm 9'9" L 7:07pm 3'0" .

Point Helen Tide Chart for (Wed) June 25, 2025

Point Helen tide chart for Wednesday, June 25, 2025
Point Helen tides for Jun 25th, the sunrise is 4:26am-11:20pm and the tide times are H 1:08am 13'4" L 8:02am -3'3" H 2:46pm 10'1" L 7:57pm 2'10" .

Point Helen Tide Chart for (Thu) June 26, 2025

Point Helen tide chart for Thursday, June 26, 2025
Point Helen tides for Jun 26th, the sunrise is 4:27am-11:20pm and the tide times are H 2:00am 13'3" L 8:48am -3'3" H 3:32pm 10'4" L 8:47pm 2'8" .

Point Helen Tide Chart for (Fri) June 27, 2025

Point Helen tide chart for Friday, June 27, 2025
Point Helen tides for Jun 27th, the sunrise is 4:28am-11:19pm and the tide times are H 2:49am 13'0" L 9:33am -3'0" H 4:16pm 10'4" L 9:36pm 2'8" .

Point Helen Tide Chart for (Sat) June 28, 2025

Point Helen tide chart for Saturday, June 28, 2025
Point Helen tides for Jun 28th, the sunrise is 4:29am-11:19pm and the tide times are H 3:36am 12'4" L 10:17am -2'4" H 4:58pm 10'3" L 10:26pm 2'8" .

Point Helen Tide Chart for (Sun) June 29, 2025

Point Helen tide chart for Sunday, June 29, 2025
Point Helen tides for Jun 29th, the sunrise is 4:30am-11:18pm and the tide times are H 4:22am 11'6" L 11:00am -1'6" H 5:40pm 10'1" L 11:16pm 2'9" .

Point Helen Tide Chart for (Mon) June 30, 2025

Point Helen tide chart for Monday, June 30, 2025
Point Helen tides for Jun 30th, the sunrise is 4:31am-11:18pm and the tide times are H 5:08am 10'4" L 11:41am -0'6" H 6:23pm 9'11" .

Point Helen Tide Calendar | June 2025

Sun Mon Tue Wed Thu Fri Sat
 

Restricted days available with membership — details below


Point Helen Tide Table for June 2025

View tide tables in a column-row format below, with a "diff" column to spot large tide height swings—great for anglers. Scroll down for a textual format, ideal for reading or sharing.

- diff Tides diff Tides diff Tides diff Tides diff Sun Moon
6/1 N/A H 10'5" 5:30AM 10'10" L -0'5" 12:15PM 9'8" H 9'3" 7:16PM 5'3" - - - - 04:38-23:01 11:13-02:56
6/2 5'3" L 3'11" 12:38AM 5'3" H 9'3" 6:37AM 8'8" L 0'7" 1:06PM 8'8" H 9'3" 8:14PM 5'4" 04:36-23:03 12:44-02:55
6/3 5'4" L 3'11" 1:45AM 4'5" H 8'4" 7:54AM 6'9" L 1'6" 1:59PM 7'11" H 9'6" 9:05PM 5'11" 04:35-23:04 14:10-02:54
6/4 5'11" L 3'6" 3:02AM 4'4" H 7'11" 9:08AM 5'6" L 2'5" 2:55PM 7'4" H 9'9" 9:48PM 7'0" 04:34-23:06 15:33-02:53
6/5 7'0" L 2'9" 4:18AM 5'0" H 7'9" 10:13AM 4'8" L 3'0" 3:54PM 7'1" H 10'2" 10:26PM 8'4" 04:32-23:07 16:56-02:51
6/6 8'4" L 1'9" 5:15AM 6'1" H 7'11" 11:12AM 4'5" L 3'5" 4:48PM 7'0" H 10'6" 11:01PM 9'8" 04:31-23:09 18:21-02:50
6/7 9'8" L 0'10" 5:59AM 7'4" H 8'2" 12:06PM 4'5" L 3'8" 5:36PM 7'2" H 10'10" 11:36PM 10'10" 04:30-23:10 19:49-02:49
6/8 10'10" L 0'0" 6:37AM 8'5" H 8'6" 12:56PM 4'7" L 3'10" 6:18PM 7'4" - - - - 04:29-23:11 21:22-02:49
6/9 7'4" H 11'2" 12:12AM 11'9" L -0'7" 7:12AM 9'5" H 8'10" 1:41PM 4'11" L 3'10" 6:56PM 7'7" 04:28-23:13 22:58-02:51
6/10 7'7" H 11'5" 12:48AM 12'6" L -1'0" 7:47AM 10'1" H 9'1" 2:22PM 5'2" L 3'10" 7:34PM 7'9" 04:28-23:14 00:00-02:57
6/11 7'9" H 11'8" 1:25AM 13'0" L -1'4" 8:23AM 10'7" H 9'3" 3:00PM 5'3" L 3'11" 8:11PM 7'10" 04:27-23:15 00:27-03:17
6/12 7'10" H 11'9" 2:02AM 13'4" L -1'6" 9:00AM 10'10" H 9'3" 3:37PM 5'4" L 3'11" 8:50PM 7'10" 04:26-23:16 01:25-04:11
6/13 7'10" H 11'9" 2:39AM 13'4" L -1'7" 9:38AM 10'10" H 9'3" 4:15PM 5'4" L 3'11" 9:31PM 7'8" 04:26-23:17 01:49-05:41
6/14 7'8" H 11'7" 3:16AM 13'1" L -1'6" 10:17AM 10'8" H 9'2" 4:54PM 5'3" L 3'10" 10:14PM 7'3" 04:25-23:17 01:56-07:23
6/15 7'3" H 11'2" 3:55AM 12'5" L -1'3" 10:58AM 10'5" H 9'2" 5:35PM 5'4" L 3'9" 11:03PM 6'9" 04:25-23:18 01:59-09:05
6/16 6'9" H 10'7" 4:39AM 11'5" L -0'9" 11:40AM 10'1" H 9'3" 6:21PM 5'8" L 3'7" 11:56PM 6'2" 04:24-23:19 01:59-10:45
6/17 6'2" H 9'9" 5:32AM 9'11" L -0'2" 12:24PM 9'9" H 9'7" 7:11PM 6'5" - - - - 04:24-23:19 01:58-12:22
6/18 6'5" L 3'2" 12:55AM 5'8" H 8'10" 6:44AM 8'3" L 0'7" 1:11PM 9'5" H 10'1" 8:02PM 7'6" 04:24-23:20 01:57-13:59
6/19 7'6" L 2'7" 2:00AM 5'8" H 8'3" 8:09AM 6'8" L 1'7" 2:04PM 9'2" H 10'9" 8:52PM 9'0" 04:24-23:20 01:56-15:38
6/20 9'0" L 1'8" 3:13AM 6'5" H 8'2" 9:30AM 5'8" L 2'5" 3:05PM 9'0" H 11'5" 9:42PM 10'11" 04:24-23:20 01:55-17:22
6/21 10'11" L 0'5" 4:25AM 7'10" H 8'4" 10:43AM 5'3" L 3'0" 4:11PM 9'1" H 12'1" 10:31PM 12'11" 04:25-23:20 01:55-19:14
6/22 12'11" L -0'9" 5:29AM 9'7" H 8'9" 11:52AM 5'5" L 3'3" 5:15PM 9'4" H 12'8" 11:22PM 14'8" 04:25-23:20 01:57-21:12
6/23 14'8" L -2'0" 6:24AM 11'3" H 9'3" 12:57PM 6'0" L 3'3" 6:14PM 9'10" - - - - 04:25-23:20 02:04-23:06
6/24 9'10" H 13'1" 12:15AM 15'11" L -2'9" 7:14AM 12'7" H 9'9" 1:54PM 6'8" L 3'0" 7:07PM 10'3" 04:26-23:20 02:24-00:00
6/25 10'3" H 13'4" 1:08AM 16'7" L -3'3" 8:02AM 13'5" H 10'1" 2:46PM 7'3" L 2'10" 7:57PM 10'5" 04:26-23:20 03:23-00:24
6/26 10'5" H 13'3" 2:00AM 16'7" L -3'3" 8:48AM 13'8" H 10'4" 3:32PM 7'7" L 2'8" 8:47PM 10'3" 04:27-23:20 05:05-00:53
6/27 10'3" H 13'0" 2:49AM 16'0" L -3'0" 9:33AM 13'4" H 10'4" 4:16PM 7'8" L 2'8" 9:36PM 9'8" 04:28-23:19 06:57-01:03
6/28 9'8" H 12'4" 3:36AM 14'9" L -2'4" 10:17AM 12'8" H 10'3" 4:58PM 7'6" L 2'8" 10:26PM 8'9" 04:29-23:19 08:43-01:05
6/29 8'9" H 11'6" 4:22AM 13'0" L -1'6" 11:00AM 11'8" H 10'1" 5:40PM 7'3" L 2'9" 11:16PM 7'6" 04:30-23:18 10:19-01:06
6/30 7'6" H 10'4" 5:08AM 10'11" L -0'6" 11:41AM 10'5" H 9'11" 6:23PM N/A - - - - 04:31-23:18 11:49-01:05

Point Helen Textual Tide Table for June 2025


Jun 1st (Sun)
the sunrise is 4:38am-11:01pm and the tide times are H 5:30am 10'5" L 12:15pm -0'5" H 7:16pm 9'3" .
Jun 2nd (Mon)
the sunrise is 4:36am-11:03pm and the tide times are L 12:38am 3'11" H 6:37am 9'3" L 1:06pm 0'7" H 8:14pm 9'3" .
Jun 3rd (Tue)
the sunrise is 4:35am-11:04pm and the tide times are L 1:45am 3'11" H 7:54am 8'4" L 1:59pm 1'6" H 9:05pm 9'6" .
Jun 4th (Wed)
the sunrise is 4:34am-11:06pm and the tide times are L 3:02am 3'6" H 9:08am 7'11" L 2:55pm 2'5" H 9:48pm 9'9" .
Jun 5th (Thu)
the sunrise is 4:32am-11:07pm and the tide times are L 4:18am 2'9" H 10:13am 7'9" L 3:54pm 3'0" H 10:26pm 10'2" .
Jun 6th (Fri)
the sunrise is 4:31am-11:09pm and the tide times are L 5:15am 1'9" H 11:12am 7'11" L 4:48pm 3'5" H 11:01pm 10'6" .
Jun 7th (Sat)
the sunrise is 4:30am-11:10pm and the tide times are L 5:59am 0'10" H 12:06pm 8'2" L 5:36pm 3'8" H 11:36pm 10'10" .
Jun 8th (Sun)
the sunrise is 4:29am-11:11pm and the tide times are L 6:37am 0'0" H 12:56pm 8'6" L 6:18pm 3'10" .
Jun 9th (Mon)
the sunrise is 4:28am-11:13pm and the tide times are H 12:12am 11'2" L 7:12am -0'7" H 1:41pm 8'10" L 6:56pm 3'10" .
Jun 10th (Tue)
the sunrise is 4:28am-11:14pm and the tide times are H 12:48am 11'5" L 7:47am -1'0" H 2:22pm 9'1" L 7:34pm 3'10" .
Jun 11th (Wed)
the sunrise is 4:27am-11:15pm and the tide times are H 1:25am 11'8" L 8:23am -1'4" H 3:00pm 9'3" L 8:11pm 3'11" .
Jun 12th (Thu)
the sunrise is 4:26am-11:16pm and the tide times are H 2:02am 11'9" L 9:00am -1'6" H 3:37pm 9'3" L 8:50pm 3'11" .
Jun 13th (Fri)
the sunrise is 4:26am-11:17pm and the tide times are H 2:39am 11'9" L 9:38am -1'7" H 4:15pm 9'3" L 9:31pm 3'11" .
Jun 14th (Sat)
the sunrise is 4:25am-11:17pm and the tide times are H 3:16am 11'7" L 10:17am -1'6" H 4:54pm 9'2" L 10:14pm 3'10" .
Jun 15th (Sun)
the sunrise is 4:25am-11:18pm and the tide times are H 3:55am 11'2" L 10:58am -1'3" H 5:35pm 9'2" L 11:03pm 3'9" .
Jun 16th (Mon)
the sunrise is 4:24am-11:19pm and the tide times are H 4:39am 10'7" L 11:40am -0'9" H 6:21pm 9'3" L 11:56pm 3'7" .
Jun 17th (Tue)
the sunrise is 4:24am-11:19pm and the tide times are H 5:32am 9'9" L 12:24pm -0'2" H 7:11pm 9'7" .
Jun 18th (Wed)
the sunrise is 4:24am-11:20pm and the tide times are L 12:55am 3'2" H 6:44am 8'10" L 1:11pm 0'7" H 8:02pm 10'1" .
Jun 19th (Thu)
the sunrise is 4:24am-11:20pm and the tide times are L 2:00am 2'7" H 8:09am 8'3" L 2:04pm 1'7" H 8:52pm 10'9" .
Jun 20th (Fri)
the sunrise is 4:24am-11:20pm and the tide times are L 3:13am 1'8" H 9:30am 8'2" L 3:05pm 2'5" H 9:42pm 11'5" .
Jun 21st (Sat)
the sunrise is 4:25am-11:20pm and the tide times are L 4:25am 0'5" H 10:43am 8'4" L 4:11pm 3'0" H 10:31pm 12'1" .
Jun 22nd (Sun)
the sunrise is 4:25am-11:20pm and the tide times are L 5:29am -0'9" H 11:52am 8'9" L 5:15pm 3'3" H 11:22pm 12'8" .
Jun 23rd (Mon)
the sunrise is 4:25am-11:20pm and the tide times are L 6:24am -2'0" H 12:57pm 9'3" L 6:14pm 3'3" .
Jun 24th (Tue)
the sunrise is 4:26am-11:20pm and the tide times are H 12:15am 13'1" L 7:14am -2'9" H 1:54pm 9'9" L 7:07pm 3'0" .
Jun 25th (Wed)
the sunrise is 4:26am-11:20pm and the tide times are H 1:08am 13'4" L 8:02am -3'3" H 2:46pm 10'1" L 7:57pm 2'10" .
Jun 26th (Thu)
the sunrise is 4:27am-11:20pm and the tide times are H 2:00am 13'3" L 8:48am -3'3" H 3:32pm 10'4" L 8:47pm 2'8" .
Jun 27th (Fri)
the sunrise is 4:28am-11:19pm and the tide times are H 2:49am 13'0" L 9:33am -3'0" H 4:16pm 10'4" L 9:36pm 2'8" .
Jun 28th (Sat)
the sunrise is 4:29am-11:19pm and the tide times are H 3:36am 12'4" L 10:17am -2'4" H 4:58pm 10'3" L 10:26pm 2'8" .
Jun 29th (Sun)
the sunrise is 4:30am-11:18pm and the tide times are H 4:22am 11'6" L 11:00am -1'6" H 5:40pm 10'1" L 11:16pm 2'9" .
Jun 30th (Mon)
the sunrise is 4:31am-11:18pm and the tide times are H 5:08am 10'4" L 11:41am -0'6" H 6:23pm 9'11" .

Alaska Tides Map

Tides map. Large blue pin with white center = this station. Small blue pin = other tide stations. Red pins = tidepools covered by this tide station.

Prev
Next

Tides.net Members Access | Signup | Login

Chris and Susie, founders of Tides.net since 2002

Tides.net is run by a couple (Chris & Susie) since 2002. Our focus is on coastal users / planners who want fast, clean tide charts and tables for planning and documenting. Sign up for unrestricted tide charts / tables and an ad-free experience. — perfect for frequent beachgoers, anglers, shellfishing, boaters, ecologists, surfers, photographers, and families planning coastal trips and especially for tidepooling.

Sign Up Now

NOAA/NWS Forecast for Point Helen | Small Craft Advisory

Last updated: June 13, 2026, 12:12 AM

Small Craft Advisory

Small Craft Advisory issued June 12 at 2:31PM AKDT until June 14 at 5:00AM AKDT by NWS Anchorage AK

Coastal Waters Forecast for the Northern Gulf of Alaska Coast
up to 100 nm out including Kodiak Island and Cook Inlet.

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

.TONIGHT...NE wind 20 kt. Seas 2 ft building to 4 ft after
midnight. Rain.
.SAT...NE wind 25 kt. Seas 4 ft. Rain.
.SAT NIGHT...NE wind 25 kt. Seas 4 ft building to 6 ft after
midnight. Rain.
.SUN...E wind 25 kt. Seas 6 ft.
.SUN NIGHT...SE wind 15 kt. Seas 3 ft.
.MON...Variable wind less than 10 kt. Seas 2 ft.
.TUE...SW wind 10 kt. Seas 2 ft.
.WED...Variable wind less than 10 kt. Seas 2 ft.

Effective: June 12, 2026, 10:31 PM

Expires: June 13, 2026, 11:30 AM

Land Forecast (PKZ726)

Land forecast currently unavailable

Last updated: June 13, 2026, 12:12 AM

ADFG

Alaska Department of Fish and Game with current fishing regulations seasons bag size limits and area specific rules

Alaska State Parks

Alaska State Parks and beaches with coastal camping, day use permits, and tidepool access information