"This 69 foot tower was built by Dr. Frank H. Wadsworth (former Forest Supervisor and Director of IITF) in the early 1960’s. Four types of the forest can be viewed from Yokahú Tower: Colorado (smooth to the south), Tabonuco (irregular surrounding with white-leaved Yagrumos), Palm (on the steep slopes) and Cloud Forest (on the ridges) are all visible along with the coastline and all the way to the Virgin Islands on a clear day (10 mile + view). The dense old forest of the Baño de Oro Research Natural Area in the upper Mameyes Valley to the east may also be viewed."
I went up the tower and enjoyed the limited views.