Last weekend, while walking in Jack Block Park, we noticed several simple and nicely done chalk drawings of sea life, including that one. Don’t know whose work it was, but in case you missed it when we shared it on Instagram, we’re featuring it today. Speaking of sea life – the second-lowest tide of the month tops our look ahead to the rest of your Thursday:

TODAY’S LOW TIDE, 12:47 PM: It’ll be out to -2.4 feet. Seattle Aquarium volunteer beach naturalists are already out at Constellation and Lincoln Park beaches, and will be there until 2 pm.

SPRING WINE RELEASE: The Northwest Wine Academy at South Seattle College (WSB sponsor) is celebrating its 10th anniversary with a three-day celebration of the spring wine release, starting today. 3-8 pm, north end of campus. (6000 16th SW)

HELP PLAN ‘FITNESS ZONE’ AT HIAWATHA: A new “Fitness Zone” free-to-use outdoor gym is coming to Hiawatha Community Center – and, as previewed here, you can help plan where it goes, among other aspects of the installation. Bring your ideas to Hiawatha at 6:30 tonight. (2700 California SW)

NEW THURSDAY NIGHT BOOT CAMP: New WSB sponsor Fitness for Vitality is launching a new series at 7 pm tonight at Jack Block Park – get the details and sign up online here.

FIND EVEN MORE … on the calendar (including how to get your event listed)!