This is easily the best hike I have ever done! I took 2 and 1/2 days to get out there and get back into mammoth. I would cut out 3 days to do this hike if you can! There is also a river around mile 12 that doesn’t have a bridge or stepping stones so water shoes/ flip flops would be good to bring. I came out the red’s meadow direction because it’s not the big climb out that duck pass would be. The smoke was pretty bad from the Lion’s fire going out Red’s meadow but it’s better than making the climb out! If you’re a fisherman bring a pole with you, fish creek has TONS of fish.