Meet up outside La Gran Parada- one of Providence’s best Dominican restaurants. Don’t forget it because you’ll end up back here after working up an appetite.
After you ride Narragansett Ave all the way through Cranston until it connects back to Elmwood Ave, cross the River and take the 1st left into Belmont Park. After a quick loop you’ll take an unassuming track into the woods along the Pawtuxet River. This section is liable to be VERY wet but it should be passable (maybe wait a few days after it rains!). After you’re back on solid ground, cross Warwick Ave and head north to the scenic Shaw’s parking lot.
From here you can try your hand at following the river again, though if you thought it was boggy before you should turn back now (just kidding- backtrack a touch and work your way to Post Road- it has great clear shoulders in this part of Warwick). Before you know it you’re crossing the Pawtuxet River in Pawtuxet Village where you owe it to yourself to grab a Del’s before you head back into the swamp behind Rhodes on the Pawtuxet.
When you’re on dry land again you’ll head west then north into Roger Williams Park- a true gem. F.C. Greene Memorial Blvd is the main road through the park, complete with 3(!/?) lane cycletrack but dedicated urbandirters will take the dirt track along the lake. There are a thousand roads/tracks/trails/paths/etc through the park so you can add basically anything you want to your plate BUT be aware than you’ll be sharing most of it with pedestrians (though they tend to stick to the sidewalks).
Pop out of the park, head up Broad Street, and treat yourself to some mofongo- you earned it.