Utah has some of the most epic snowkiting conditions in the US, yet it has some of the most slimy polluted water for summer kiteboarding.
Utah Lake - home to Geneva steel, moss, carp, and slimy brown water. Wear a nose plug because this filth (water) will congest your sinuses for days. Receives a nice thermal off the Great Salt Lake. Kite Beach - covered with old tires, broken glass, nails, old sofas. Local Kiters hauled off several truckloads of garbage this spring.
Rush Lake - natural saline water about 20% salt - really more of a pond than a lake with the average depth being less than knee high. Surrounded by cattle grazing (cow pies), barbed wire. The lake was home to carp a couple years ago, but a hot summer and drought led to a massive fish kill. The shoreline was covered with dead rotting fish and fish bones for a couple years. Now all we have to contend with is slimy stinky mud, cowpies, sage brush, sticky weeds, and moss. Every year the lake becomes unrideable due to complete moss coverage, we don't even think of flying foils there once the moss starts to grow. The water is so shallow and the mud is so deep that we call it mud boarding at Rush. Of course, this place is a haven for birds and flies. Making the lake so vile on a hot day that you pray that you don't get a mouthful of water after a poorly timed jump.
Salt Ponds - an isolated portion of the Great Salt Lake that receives a great thermal wind on hot summer days off the GSL. The only problem is that the salt content is well over 30%. The bottom of the ponds has a quarter inch crust of salt over slimy gooey mud. One shot of this water up your nose and your eyes will water for 10 minutes. Better than wasabi at making grown men cry.
Grantsville Reservior - Man made reservior that has a man-made dyke surrounding 2/3 of the reservior. Tiny in size, with a reach of less than 1/8 of a mile and the length of the whole lake is less than 1/2 mile. Home to Utah fishing hicks with sporty mullets and beer-can trailors. Shore is littered with broken bottles, rocks, fish hooks, beer cans. Reservior gets a gusty morning thermal wind. Bonus - you can jump angry, rod waving locales in small boats. Oh and the flies are so bad for a couple months that you cannot avoid getting swarms of them in your car just getting in and out of the car.
The nice thing about living in Utah is that every other place I travel to seems clean by comparison. Even Belmont Shores with trash all along the waterline seems like paradise compared to Utah's filthy locales.
If you have a more disgusting location, I would like to hear about it.