Beginning right before the bid rickenbacker bridge, its a straight 5.26 miles of beach/bay views transitioning into the key Biscayne trails. You must stay on the right side of the road and cross the street to get into the trails (signs along the route are straight forward!) at the start of mile 3. Follow the running path straight to mile 5.25. You will pass a parking lot for Crandon Park beach. 

A Rota UltraVellozia é uma ultramaratona de trilhas, localizada no Parque Nacional da Serra do Cipó. O nome é em referência à distância (50km) e à presença de uma espécie de planta rara e endêmica da região: a Canela de Ema Gigante (Vellozia gigantea). O percurso é bastante técnico, quase que, exclusivamente, de single tracks e. atravessa as partes mais altas do Parque, com início pela portaria Alto Palácio, passando pelo Travessão (10km), Casa de Tábuas (18Km), Pico do Ernesto (25km), Currais (30km) e Farofa de Cima (43km), com fim na portaria Retiro (50km).

Admin note: The time should start and end at a trailhead, even if you complete all of the trails before returning to a trailhead.

Chiricahua National Monument is a hidden gem in southeast Arizona.  The trail system covers a variety of terrain and explores amazing rock formations and a natural bridge.  It is a true "Land of Standing Up Rocks", worth exploring at any speed.
Park Site