Amazing Day at Roca! Post by: Nautilus Staff 2016-03-13 Crew, Socorro Truly amazing day at Roca. Schools of hundreds of Hammerheads, Galapagos, Silvertips and Silky sharks! I watched a Tuna attacking a Silky which was interesting and the thousands of reef fish. Share: Nautilus Staff Editor Share your thoughts Cancel reply Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Newer Post Guests were Stoked! Older Post My Dream Came True!