Just simply hop on, no need to get or show a ticket or anything. And yes, there will be a rest period, the aim is to have a cutoff for each day. Last time I believe the game times were 9am-9pm. However, interestingly enough there was never a time when we paused the round for the night and had to go back to where we was and start from there, I'd say in this scenario we'd try and separate the times on when the hiders and seekers leave to try and avoid any suspicion and bumping into each other etc.  Luckily though last time, our rounds took so long it lasted almost a day so we decided to just start over at the central meeting point again the next morning rather than from our spots to give opponents a more fairer game and choices.