Rainforest Excursions from Bequia

Hello,

We are preparing for our first trip to St. Vincent & the Grenadines in early May. We will be staying on Bequia, and intend on spending most of our time there. However, one of my sons really wants to have a day spent on St. Vincent exploring/hiking rainforest, waterfalls, and anything else we can fit in to see the natural side of St. Vincent.

After a bit of research through the forum and on search engines, I have found limited information about a trip of this nature. I did find that Sail Grenadines does a trip, "Bequia - Wallibalou," which sounds closest to what we are seeking.

Any other recommendations of where to look for this type of experience?

Thank you for your time!