It’s 24 hours. Crazy & I need to figure out how that works as a fan. Stay the whole time. Leave, come back etc.
Don't know if I can advise rawdogging it. Especially for nephews sake. It will drive your head in. Before sunrise is nicer than after sunset usually. So don't be afraid to call it a day if you think you can make it earlier the next day. But be adaptable to bad weather to make the most of the time on track.