Our friends Barry and Bonnie run the Blackfin ... actually Barry - Bonnie works for the Sheriff's department.
We feel right at home at the Blackfin. It's not fancy, but it's clean and well maintained. Rooms are always being updated, the grounds are well kept and the sand on the rocky point is raked every morning. They have a private ramp and slips or trailer area available for your boat. 7 Mile Bridge is a short boat ride away and Vaca Cut is not too much further in the other direction. There's good snorkeling along the rocky point extending from the resort and a nice swimming area - they also have a pool if you not interested in ocean swimming.
Regular room rates run from around $90 to $140 during the different seasons and a few 2 bedroom apartments are available.
I give this place a big thumbs up. It has been a pleasure every time we have stayed there.