pnwdiving

Twanoh State Park

 
Dive report for 3/20/25
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Visibility: 5 feet, 10 feet in the shallows (outgoing tide)

in the shallows, the water was chunky with algae and about 10' visibility down to about 25'. Then, the algae cleared out mostly and the water got silty, but stayed at a 10-15' visibility down till about 85' or so. From 85'-106' (our max depth), the water was more muddy and reduced visibility to 5' or less. Creatures: pink Tritonia, Dendronotus iris (a few with the white coloring and one with the red/rainbow coloring), graceful crab, Blackeyed hermit crab, sand star, leather star Jellies were primarily in the water column from the surface to 50'. When I say small- think Β½ inch or so for these little guys bodies: thimble jelly, tailed jelly, sea gooseberry, then the larger ones: water jelly, cross jelly, and aggregating jelly. I didn't pay attention to the water temp, but it felt near the 46F range... I dind't feel a thermocline in the water column.

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Dive report for 1/24/25
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Visibility: A muddy 5-10 feet, <5 feet in the shallows (outgoing tide)

If you enjoy epic reverse halotherms… go visit Twanoh state park. thin sheet of ice on shore and at surface of water but warms to a toasty 50F by 20’. Surface scooting is highly recommended to freeze your cheeks. Surface water temp near freezing. Thermocline was significant at 13’ deep warming the water to mid 40s and by 20’, water was a warm, 50F. Visibility was preety poor in the first 7’ of water- about 2-3’ and. Very hazy with the fresh/salt mixing. Vis opened up to about 10-15’ from about 15’-60’ then got muddy down to our max depth of 95’. Lots of small jellies in the water column dowwn to 50’ or less: sea gooseberry, lobed sea gooseberry, cross jelly, thimble jelly, aggregating jelly. Shallows through 30’ or so had plenty of crabs- graceful, red rock, dungenes, and hermit crabs. Then as you got to 70-95’, we had a handful of pink tritonias and Dendronotis iris (giant nudibranch).

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