In the winter trail is still easy, but slippery. Recommend crampons but it is still possible without them. Takes about 30 to 40 minutes to hike, mostly flat. It is a popular site so it can get crowded and parking can be a bit tough. There is algae/slime in pools so be careful. Water is a good temperature and is a beautiful blue. There are areas of sulfur that you can unfortunately smell very strongly.