Tacklebuster,
Make sure you take a look at a chart of the Depoe Bay entrance before you go. It kind of snakes around. Once you're outside, on your return to the bay, there are 2 red lights underneath the bridge, these are channel markers. Get your boat in a position so that the 2 lights are aligned vertically and you're lined up in the channel.
(If you don't have a paper chart to look at you can use this link for an electronic version,
Sea Tow Chart Link )
Also, if you've got GPS, you'll want to make sure it's on before you leave the bar so you'll have a plot line to return on if the fog moves in.
Have fun!