I couldn't find Sombrero Beach MARKED on the chart, but if you go here: http://local.live.com/default.aspx?...&style=h&lvl=6&scene=1926015 you should be able to find it by following Sombrero Blvd. 931

The Beach is down in the corner against the mangroves.

We are both looking at the same channel 5, so I hope that's the one!