Princess snorkel excursions?

[SugarStar00]

I know that St. Martin is not the best place for snorkeling, but due to some other excursions on the other islands we might only be able to snorkel here. There are 3 excursions to choose from:

 

Shipwreck cove (which I have been reading is dull)

 

Catamaran Snorkel, Beach & Shopping (only 40minutes of snorkeling, unknown where?) or

 

Power Rafting, beach,snorkel adventure (which takes you to green cay island to snorkle for ?? amount of time)

 

Anyone done these? which is the best? any suggestions? any info is appreciated! Thanks!

[SugarStar00]

awesome. thanks