Sea Turtle Walks: 9 p.m. to 1 a.m. starting at the Museum of Discovery & Science, 401 SW Second St., Fort Lauderdale. Must be able to walk 1-2 miles along the beach and be over 9 years old. Advance reservations required. Cost: $21 per non-museum member. 954-713-0930; www.mods.org.

South Florida Sailors & Boaters: 6:30 p.m. weekly gathering at Beachcomber Resort, 1200 S. Ocean Blvd., Pompano Beach. Boat or know- how not needed. 954-908-5335; www.southfloridasailorsandboaters.com.

Wednesday Night Paddle: 7-10:30 p.m. kayaking class at George English Park, 1101 Bayview Drive, Fort Lauderdale. www.meetup.com/kayaking.

South Florida Women Divers: 6 p.m. dinner followed by a 7 p.m. meet- ing at Pioneer Park Annex, 249 NE Fifth Ave., Deerfield Beach. 561-638- 8487; www.sfwd.net.