Shore excursions were not very good. The trip to the beach in St. john was good, but too short. The rain forest excursion in Puerto Rico was a long trip for not much of an adventure (and the bus driver stopped at a shop on his return that mysteriously had his name in the title). The snorkleing excursion in St. Maarten took place off a roach infested boat in not so great weather.
Good Cruise, not excellent
Pros: Adult's Only Pool and Johnny Rockets
Cons: Poor organization by staff in having passengers disembark the ship. Too much smoking!
Recommends Explorer of the Seas? Yes!