Matecumbe Bight Anchorage is located off the Florida Keys Inside Route, just south and west of Lignumvitae Key. This is not a spot where you want to be if fresh northerly winds are in the offing, but there’s good shelter during times of southerly breezes.
I’m familiar with the “creek” described below by Captain Dixon. It’s a tiny, SMALL CRAFT ONLY cut-through from the Lignumvitae Channel. During daylight hours, I’ve used this passage myself as a short-cut, but running it after dark at planing speed, well, the thought of this activity gives me the shudders.
Matecumbe Bight. Anchored here May 5, 2012. Things were good until shortly before dark. Fishing boats started buzzing us. One came so close to our bow that I thought he was going to hit us. One boat stopped by and told us we were in the fishing boats “runway.” So, even though it was dark, we pulled up anchor and moved farther NE behind the mangroves. There apparently is a creek that you can see on the chart, but not the naked eye, the fishing boats use.