Wilson Botanical Garden is located in the San Vito area. Bob and I visited there during our 2016 bike-pack trip in Costa Rica. That year was unusually hot and dry so things were not as lush as it normally would be, but Bob and I still enjoyed our time there.
Wilson Botanical Garden offers both self-guided tours and guided tours. Bob and I opted for the self-guided tour.
They also feature cabins, a restaurant, and a gift shop for visitors who want to spend more time there.
To get there, from the main intersection in San Vito, take Route 237 toward Ciudad Neily for 6 km (3.7 miles). The entrance is on the right.