What is there to do in Belize besides ruins and tubing?

Hi! We are looking into things to do in Belize. Are there any reputable 3rd party tour operators we can check out? We have already seen the ruins, and have no desire to return this time. My mom isn't keen on the the cave tubing, so that is out also.

We love the beach, so that would be our first choice. Any ideas?

Freshwater, Flats and deep sea fishing, the zoo, River kayaking or sea kayaking, zipline, the cathedral and museum in Belize City, Travelers Distillery tour and Moho chocolate. Find a supermarket with Marie Sharp's hot sauce which Belize is known for.

Taking a boat out to their Reef (2nd largest in the world) is not to be missed by snorkelers. (y)

Taking a boat out to their Reef (2nd largest in the world) is not to be missed by snorkelers. (y)

Rent a kayak and go out to the reef and use the tie offs for the kayak and snorkel

Taking a boat out to their Reef (2nd largest in the world) is not to be missed by snorkelers. (y)

This sounds like something we would really enjoy. Thank you! Do you recommend booking through the ship or is there a third party you could recommend?