Regarding Iron Butt Rides: In my opinion and without a doubt, I believe the Iron Butt Bun Burner Gold is the single toughest Iron Butt Ride. While the BBG is arguably the toughest Iron Butt ride I believe the Iron Butt National Parks Tour is the most satisfying, not to mention the most interesting, of Iron Butt Rides.
I have attempted the National Park Tour twice and both times came up short. In the first attempt in 2005 I simply ran out of time. In the second attempt in 2007 I had well over the required 50 parks logged and 23 states. I lacked only two states to complete the tour. All I needed to do was Park collect a stamp in neighboring Alabama and Florida to complete the NPT in the time allotted. I had a month and a half to ride collect these two states. Normally that would've been easy, but 2007 was not a normal year. About the time I was finishing the NPT our family was beset with a series of family emergencies and I wasn't able to finish the NPT.
Even though twice I didn't complete the NPT, I nevertheless had great tours of the country visiting places I probably would not have visited, but for the NPT. In 2005 I concentrated on National Parks along the west coast and points in between. In 2008 I collected stamps up the east coast and into New England. Once my separated shoulder heals enough so that I can ride long-distances I'll begin a 2009 NPT attempt. This time I think I'll concentrate on National Parks along the northern tier of the country [I've been wanting to visit Glacier National Park for 10 years and this just may be the year.] Hopefully I'll finish the NPT time, but if I don't, I've still will have seen a lot more of our beautiful country and will have created a lot of memories to savor for the rest of my life.
We live in a vast and beautiful country and riding a motorcycle visiting National Parks on the National Park Tour is a great way to see the country. Thank you Iron Butt Association for creating the National Park Tour . . . the most satisfying and most interesting of Iron Butt rides.