Zaida Wreck is Nosy Be's oldest wreck, a deteriorated cargo barge lying on a sandy bottom in the island's wreck-diving area. The site is a boat-access wreck dive with broken structure, sponges, nudibranchs, and lionfish, and the right tide can pull more fish in from nearby water. It suits experienced divers who are comfortable with wreck procedures, variable visibility, and modest overhead spaces.