Having been on the Philippines Siren and the Fiji Siren, I can't say enough good things about this company. Both boats were amazingly well run. The cabins were huge and the food....well....suffice it to say that my wetsuit got a little snug by the end of the back to back trips schedule.
I would go aboard any of their boats in a heartbeat!
Competitions that have rules that prohibit cropping shouldn't be entered.
I believe a category for no cropping is great. The problem with PS is that it is taking away from the idea of composing your shots as you take them. It has made photography all about who can "manipulate" the best. The idea of minimal processing is an attempt to keep people using art at the time of capture....not afterwards.