You can plan to do Black River, Bamboo avenue and Pelican Bar and I would highly recommend to check out Owen of Cross Jamaica Tours (crossjamaicatours@gmail.com)
We did Ys Fall, Black River and Pelican Bar last year. It was great! The price for he tour
is in the range of Isd 160-Usd 180. Boat at Black River Usd 25 per peson and boat to reach Pelican Bar usd 10 per, person.