In fact, the place where they find Robert Bailey's body is almost the exact same spot where they earlier found Miguel Prado's body - after Dexter killed him. (This must be a popular dumping ground for bodies in Miami!)
To reach the spot (without walking all
the way around the lake), enter via the park entrance on the south side
of 6th Street (about a quarter of a mile east of Park Avenue), onto a
little road called Nieto Avenue, that runs to the parking lot. As you drive into the park on
Nieto, the spot where they filmed the scene will be on your left, just
before you reach the parking lot.
And yes, that "lake" is the Colorado Lagoon, a saltwater body that was originally linked to the nearby Alamitos Bay.
Colorado Lagoon Park lies just above (northwest) of Marina Vista Park (where they filmed Harrison's soccer game), and just below (south of) Recreation Park.
The park is about half land and
half water, including sandy shores by the Lagoon. But while swimming
used to be a popular past time here, once the Lagoon was cut off from
the Bay, and storm drains emptied into it, the water quality has greatly
A. In the early seasons, I
usually had to hunt down the locations after viewing the episodes, using
clues from the various scenes. By the now, though, I've developed
a small group of fans, spies & tipsters who kept an
eye out for Dexter filming in their neighborhoods, and let me know in advance when something is about to film there.
Between those reports, my own personal reconnaissance around town, and a
few new resources I discovered, by the time the new first episode airs, I
already know most (but not all) of the filming locations, and only
need to watch the episodes and match up the scenes with the correct
This group of helpful fans includes Rick, Ellen, Suzi, Elaine, Mia,
Julie, Kerry, Joel, Eric, Jeff, & others. My thanks to all of them.
I originally found this site, back in the third season, when a fan who lives nearby the park, Julie,
tipped me that they had been filming there. And she came through
again this time, reporting that they were filming what appeared to be a
crime scene at the Colorado Lagoon. (Thanks, Julie!)