Rio Seco Waterfall Located in Matura, it is the undisputed most picturesque waterfall in T&T. Easy hiking access from the parking area. At trail head on the Matura National Park Rd. The trek takes hikers 40 mins along a well-defined trail with ravine crossings. There is a 80 ft climb down to the pool beneath the waterfall and a wide basin for picnicking. The pool is wide and deep for swimming, caution is advised.