Are you going on the Oct 21st cruise? We are going on the date. In the guide to shore excursion brochure our TA gave us it list yhese excursions- Corobici river rafting $89.00,duration 7-7 1/2 hrs. Poas volcano National Park $78.00, duration 8-8 1/2 hrs. Horseback riding adventure $63.00, duration 4 1/2-5 hrs. Sarchi shopping tour $37.00, duration 5-5 1/2 hrs. Carara nature walk $60.00, duration 4-4 1/2 hrs. River Adventure tour $71.00, duration 5 hrs. I do not know if any have changed in the mean time though. Hopes this helps.
The Coriboci River Rafting tour including lunch is great. Try to take the later departure, wear your swim suit as in fun you will get wet, and you will have lunch first. The early departure won't get to the resort for a wonderful Costa Rican luncheon until about 1:30 and be very hungry. If you love coffee, get off of the ship as soon as possible and buy some Costa Rican coffee in one of the little shops just off of the pier. It is very strong. The Volcano tour often gets rained out - it is in a rain forest! People said the Sarchi tour was very boring on our Panama Canal cruise.