Originally Posted by ScubaBOS

Is your Jolly trip the same day? Which crusie is it, the Morning or Afternoon? The Morning trip departs at 9:00am and gets back around 1:00pm. The Afternoon trip sails from 2:00pm to about 5:00pm.

You could do the Butterfly Farm and shopping expedition downtown on a seperate day. From the Marriott, the farm is a long walk down to the Divi Phoenix, but it could be done. You could shop along the way at the different resorts.

From there you could catch a bus downtown and return to the Marriott on one.
The bus is out of the question. You could catch one from the Mariott to downtown, and then transfer to one headed towards San Nicolas, but the restaurant is not on a bus route so you'd end up walking from the main road.

If you're leaving form the Marriott I would give yourself an hour to get there. 45 minutes at the bare minimum as traffic headed that way can be heavy at that time of day.