Formigas Islets (nature reserve)
Nature reserve – protected area with regulated access. The Formigas are a chain of rocky islets about 20 nautical miles from Santa Maria, with a shallow reef at about 8 m, a wall along the islets and reefs to the north. Reported marine life includes skipjack, bigeye tuna, wahoo, barracuda, white trevally, devil rays and giant mantas, smooth hammerhead and Galápagos sharks, island and dusky groupers. The official guide calls it a remote, exposed site recommended only for experienced divers. The position is approximate (the official guide publishes no coordinates) and is for orientation only.
depth: 8–60 m