Sometimes, adventures are easy to find – they’re marked in large white letters on big brown signs right next to highways, telling you where to turn to find something unique. Other times, adventure takes a little initiative to find. Take Hospital Rock, for example. It’s located at the southern end of Sequoia National Park. It is well marked, but other than that, not much is publicized about it other than that it’s a picnic area. On the surface, it doesn’t appear to be that interesting of a spot, nor a spot containing adventure – but it is. For starters, let’s address what it is – it’s not just a National Park Service picnic area, but a large quartzite rock that is partially is a “cave” due to its resting location next to other rocks.