We booked the trip via Shoretrips.com. Per instructions, we took a $7 cab ride to El Cid where we boarded a Hummer for about a 20-minute ride to the tour embarkation area. Then we were assigned a Rhino (a two-person jeep) for abut a 3-mile highway trip to the Punta Sur Refuge. The trip was worth it. First we went to a crocodile preserve where we were very close to crocodiles. We also saw an 800-year-old Mayan Temple and an old lighthouse. Before going home, we went to a quiet beach on the refuge where there was snorkeling, kayaking, and swimming available as well as scrumptious guacamole and drinks to purchase.
We had scheduled cave tubing through Shoretrips.com, but the actual operator was VIV tours. I can't say enough good things about them. We met them outside the terminal and boarded a large van for about a 40-minute ride into the mountains of Belize into another protected par. We were issued hardhats with lanterns and large tubes with mesh seats and took a 35 minute trek to the first cave. When we got in the water, I realized why our tour was so good. In every other group, the tourists were linked to each other by sticking their feet under the arms of the person in front of them. In our two groups (6 in one and 7 in the other), our tubes were linked together with carabiners (no feet involved). We went through two caves, each of which was remarkable in its own way. The guides were knowledgeable about their country and the caves; the whole day was fascinating.
Again, we had scheduled our excursion with Shoretrips.com. The local vendor was Subway Water Sports. We were taken on a van to a diving resort on the east side of the island. First we took a kayak (very uncomfortable because the kayak lacked a back) and then we went snorkeling. I didn't snorkel but my daughter said the reef and fish were amazing. The snorkeling guides were excellent; they kept a careful watch over those who were snorkeling and knew a lot about the inhabitants of the area (fish and human).
Like several others from our Cruise Critic roll call, we went to Maya Chan. Getting there involves a long bumpy taxi ride, but the resort was worth the trouble. Dave and the crew at the resort gave us a wonderful day. We were met with fruit punch made from fruit and alcoholic or nonalcoholic as you desired. There were rafts and kayaks to entertain us in the water, which was clear and warm. Each party had a private area to hang in with shade and lounges and a hammock. I want to go back.