Osborn Islet is near Española and is a great place to observe sea lions, parrot fish, butterfly fish, coral and possilbe red-lipped bat fish. 

Highlights:    Sea lions, parrot fish, butterfly fish
Experience required:    Open water diver
Depth:    Average 0-24 m (0-80 ft)
Currents:    This area is generally well protected from currents, although there may be a small surge at the surface.
Water Temp:    22 C (72F)
Difficulty:    Beginner
Visibility:    15-18 m (50-60ft)
Interesting facts:    This is a great spot to see green pencil urchins.