Rings of air under the pier
Fig. 42: dive at the wreck of the Superior Producer in the harbor near Willemstad. You have to catch one of the rare days when there isn't a huge cruise ship at anchor here. TG 683: Dive Site Superior Producer, Curaçao. — EXIF: Nikon D200; Δt=1/91 s; f=10.5 mm; f/2.8; ISO 100; 2019-11-15 13:07:29