Some new guys are asking where to go for the "festival" so I am putting together a set of directions starting from Anchorage.
Drive North on the Glen HWY and turn off to the right on the Old Glen before the Knik River Bridge. Turn right and drive down the old HWY for a few miles. The road main road will take you to the Knik river and you will see two bridges. One is the old single lane bridge and is not in use. Cross the river on the main road and keep driving for few miles on past Plumley road and the "gas and go" at the Butte. You will come to a section of the road that is very straight with a leavy on your left and a creek/ditch on the right. About 1 mile after the road become straight there will be a marked road on the right - Maud Road. Take this right and go to the end where it appears to become someone's driveway. Keep going into the woods. You are now on the Rippy Trail.
There are a few pot holes and a wash out or two. About 1.5 miles later you will come to a parking area on the right. This is the "launch" area that most of us use. The "ramp" is usually one truck at a time. Make sure you have 4WD since the place can get slippery.
Here is a Mapquest link to the general area.
Click in on the Zoom one time to get the roads to show up. On the map you will see the roads and the lake we launch into to get to the rest of the marsh. The lake size shown on the map is based on pre 1964 quake size info. It is much larger now since it sank about 3 feet back then.
The guys could be anywhere in the marsh so listen for the lawnmower noise off the mud motors. The newer ones may be sounding like a hog.
The cabin is way up Jim Creek into the Swan Lake area. From the launch enter Jim Creek and then take the first "left" and follow all the twists and turns. Once to the main channel head upstream (left). Jump some logs, more twists and turns, and you will eventually come to a bunch of wide water with what appears to be a pine covered island. From this point there are many options to take - up stream to the right and Swan Lake, left and Leaf Lake, or a couple of back sloughs. Lots of spots.