Welcome back, Christal!
The
Chukka Horseback Ride and Swim adventure will include a 45 minute horseback ride, with 10 minutes of that experiencing the horseback ride in the sea, though the adventure is about four hours long due to the scenic motorcoach tour to and from, and shopping.
Now, the one I'd most highly recommend is the
Chukka Horseback Ride, Swim with Dunn's River Falls and Lunch tour. Why? Because in my opinion, no visit to Jamaica is complete without experiencing the iconic Dunn's River Falls. You simply must go! Again, on this horseback adventure, you'll have about 40-45 minutes of a ride, and 10 minutes of a ride through the sea on horseback.
The
Mayan Frontier Horseback Riding Tour you mentioned is in a different port of call: Cozumel, Mexico. Again, here, I haven't experienced the horseback ride, though I looked into the details for you, but loved our adventures at the Mayan ruins! The adventure includes a 90 minute ride, but the tour itself is about four hours, due to motorcoach tours to and from the ride and time to relax and enjoy the ranch. Since the ruins you see on this are actually just replicas of ruins, if you're choosing only one horseback tour, I'd still opt for the Jamaican adventure that includes the horses and Dunn's River Falls. Then, if you'd like to see the ruins in Cozumel, try the Ruins, Chocolate and Beach adventure which is a favorite of mine that I mentioned to you in your last question.
Have fun planning, Christal!
Marcy