With a road map and a rental car you can see it all!
#53 from Fajardo to Yabucoa is very scenic. Above photo taken
near Naguabo of the eastern end of the El Yunque mountains. Pico
you leave Fajardo or Naguabo in the morning take a swim in the
cool river at the top of the road # 191 and then and go back down
to Highway #53. Drive south, past Humacao, to the end of the highway.
to Yabucoa: Travel on scenic road along the southeast coast
from Yabucoa to Maunabo. Going South from the end of the super highway, be sure to take road #901 ( scenic drive on the cliffs by the sea) towards the southeast end of Puerto Rico. You could stay
the night at the Parador Lucia, Playa Emajagua Guesthouse or push
on to Caribe Playa Guesthouse. all clean and ok, all on the beach but none on a good beach to swim at.
Tuna lighthouse 'El View' Restaurant on #901