Montego Bay, Jamaica
Dunn's River Falls is beautiful and climbing it was mildly challenging, but very fun and an experience I will always remember and would repeat if I come back to Jamaica. The horseback riding portion was okay, but not as enjoyable as the falls. You might try the falls alone or with another activity.
Montego Bay or Negril, Jamaica
The tour itself was both fun and informative, however there was some confusion with the hotel pickup. I would call the day before to clarify the pickup location if you book this tour.