I have never stayed but it does look open and HOT if your coming in the next few months ! La Masa RV is also right there.
As stated the marina is close, central Fl zoo is also close (10 min).
Seminole mall and restaurants (10 min).
A nice drive along the lake will bring you to Sanfords water front area and downtown area (20 minutes).
20 minutes north on hwy 17 (Debary) is another nice marina / restaurant/ bar (Swamp House Grill).
Do you have bikes ? If so Debary has a very nice bike trail that runs 15 miles starting from Lake Monroe Park (10 min).