Spirit tips for 18 year old girls

[hlsess]

My D18 is going on the Spirit on Sunday with a friend's family-I have her notarized letter and passport.

I am just looking for soem ideas of things for them to do on ship- I read that bingo was expensive- and not alot of payout along wioth the casino not being that great.

I had planned to book a catamaran/snorkel trip in Cozumel but haven't yet SO I am trying to just find some things (not alot $$) to do on shore- like some beaches with restaurants/shopping close to port -

 

When we went to Coxumel 5 years ago we went to a beach that wasn't far away-maybe Paradie -can't remember??

 

Also- on the ship- any tips- about restaurants/seating/ pool -chair saving or not- good spots to go that aren't crowded for sunbathing- what to do at night away from parents/ younger siblings??