The altitude is an issue for us sea level folks. We spent a day in Salt Lake City, then a couple days in Jackson, then into YNP . . . We took things easy for the first several days of the trip, and had no problems when we walked up to some falls and the rim of the caldera. Unfortunately I can't recall the name of the trail.
We stayed, a few days each in the Old Faithful area, Mammoth and Lake. Definitely stay in the park if you can get reservations. We opted for the least expensive with bath in the cabin. The cabins at Old Faithful were pretty basic, Mammoth was "eh" but better than OF, and Lake Cabins were quite nice.
Last edited by NJGIRL; 04-03-2015 at 10:48 PM.
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