We are trying to decide if we should hire a private guide and/or boat for our September trip. We are supermacro hunters and love to take it EXTREMELY slow. I can look at the same 1ft rock for half an hour, easily. I can also get 3 hours on an 80L at the right dive site. (Shallow, of course.) With a private boat, are we still restricted to 60 minute dives? If not, how would that work $$ wise? Could we do 2x2 hour dives? (Trying to justify the private boat and guide to my husband, lol) Thanks!