We'll arrive at MA on a Monday when park is closed. Any suggestions of things to do? We are not beach people and will be at MA for 3 days.
Thanks,
Jane

Assuming you'll arrive in the afternoon? Perhaps it would be a good day to acquaint yourselves with the area, check out some of the restaurants, gift shops, make arrangements for the next 2 days, etc. Maybe you could do some kayaking that afternoon?

A couple of tours that come to mind are:

Finca Valmy horseback to the waterfall

Damas Mangrove Tour

Thanks, Shillmac. The Mangrove tour looks great. When researching it, I see that there is a "spice" tour that looks good also. Any recommendations for tour providers?? Or are they pretty much all the same?
Jane

We went sailing while we were there, and it was really nice. The mangrove tour gets rave reviews as well. For restaurants, we loved Ronnie's Place/Mi Lugar - get there early to watch the sunset.

I think you can book most everything once you arrive.