Highly recommend taking the short side trail to the Subway Caves. Easily one of the highlights of this section, as well as a great source for water, and a lovely privy. The water carry out of here is not 30 miles. We carried just enough to get us 2.8 miles up to the trailhead atop the rim, where there was a cache that appeared to be regularly tended to. After that, there is Lost Creek in 5.2 miles, and Cache 22 in another 8 miles, which are both reliable water sources. The rim was completely exposed and pretty brutal in the heat on the particular day we crossed it, so don’t under carry, or over carry here. Regardless, this was a beautiful hike, and a great day for high mileage.