It's approx 45 miles from Stingray light to Lynhaven Inlet which is on the south end of the CBBT. The CBBT is 17 miles long so it depends what part you are looking to get to. I would say from hole in wall to north end of CBBT would be approx 25 miles and add on from there.
Going from the hrbt to the hole in the wall takes me any where from 1hour30mins ta 2hours and I thought it was more like 40 miles, but I dont have a gps so I could be wrong on the miles! I just mapped it out 30m to the high rise, 31m to the bend, 35m to the first island,