Where do sail & snorkel excursions leave from?

[dnmbw]

On Royal Caribbean Mariner of the Seas trying to find a snorkel sail but am wondering where you actually catch the sailboat or catamaran? We are there on a day when 6 ships are in port trying to make sure I don't spend all my time in traffic jams. Any help would be appreciated?

 

has anybody done any of these through the ship??

[Ms411]

I know the Doubloon leaves from the Havensight dock. You can sign up there, but I think RC uses them for their sail/snorkel tours. Not sure if they're the only ones leaving from Havensight.