I am doing the NANPA sponsored trip to the Galapagos Islands in August and would appreciate some advice from folks who have been there on camera gear I should make sure I have. I have a canon 5d mark11 and 100-400 and 24-70 Canon L glass lenses. What lenses are most useful and what filters beyond the circular polarizer and GND. If a ND filter -- how many stops (I can;t afford the variable stop one). And I presume a tripod is needed -- but then again, it is wild life and rocky terrain and boat life.
Also any recommendations on an underwater camera to rent -- I;ll only be snorkeling