-Located 60 Miles From West Yellowstone And 80 Miles From Jackson Wyoming-The St. Anthony Sand Dunes Are Located In Saint Anthony, Idaho.-Rexburg Idaho and St. Anthony Idaho Are The 2 Closest Towns (About 10 Miles Away) Both Towns Have Restaurants, Hotels/Lodging Etc.-The St Anthony Sand Dunes Are 32 Miles In Length And About 1 Mile Wide.-St. Anthony Sand Dunes “Riding Season” Is April 1st Through November 1st.-The Average Temp During Summer Months Is 78*F.-Egin Lakes Is A Small Non-Motorized Lake That Is Right On The Sand Dunes. -The Deepest Part Of Egin Lakes Is Typically 3-5 Feet Deep, So Bring Your Swimsuits As It Is A Great Place To Cool Off! You Can Ride The Rental Machines Right Up To The Water And Cool Off. You Might Even See A Moose Two!