Hiking up the North Twin trail is a very nice hike. The trail was well groomed and Java had no issues with any of the steep sections. As you approach South Twin summit, the trail does get steep but overall the trail wasn’t too bad. It is almost 5,000ft in elevation so it’s a rocky climb but Java had no issues getting to the top! Plus, we saw lots of pups at the summit both times we summited. South Twin has some really amazing 360 views and definitely worth the trip up.