I would absolutely not wait until the day of. We have been going to Roatan for 15 years(2-3 times a year). Ronystours is a perfect option. Choose the freestyle option. You can configure your day any way you like for 1/2 the price of a so excursion. You will be free to come and go as you please. Lots of great things to do. I recommend all I f these: swimming with dolphins at Anthony's Key. Interacting with large birds, monkeys, and sloths at Mayan Eden. Snorkeling/amazing beach - West Bay. South Shore Canopy for a great zip line.
For example: Sone could go to Mayan Eden while others swim with the dolphins. Then some could get dropped at zipline while others go to the beach. Then, all could meet at the beach. They are very closeby. Just an example.
Also, with private driver - see something you like - Driver will stop. Take photos anywhere you like. I can assure you that Rony and his drivers will make sure you have a great day!