First time cruiser here...leaving on Jewel of the Seas 5 night out of Tampa on 3/31/12...visiting Cozumel and Costa Maya. I'm in information gathering mode right now, reading everyone's boards and making notes about packing etc. Not sure how I feel about excursions at this point, a forest canopy tour sounds interesting, has anyone done that? And for main dining room, we have 8:30 seating for the entire trip, are you always seated with other people? No "two to a table" atmosphere?