What do you do while waiting (daytime not at home)?

So my wife had her first solo experience with a vanilla guy (not great) 4 weeks ago while i was at home, kids, work, etc.. kept me occupied.

Now she is going on her first "first meet' with an experienced lifestyler (big, fit, 15 years younger,....), at first sight the whole package. They had a video call yesterday and it went really well, so they are meeting today at 3pm in another city (1.5hrs away for both). I will not be meeting him this time but I will be somewhere nearby. We are putting no time limit on it. She would love to get at least to kissing, heavy petting etc... and is open to them going to a hotel alone for several hours.

So i find it a bit funny. What the hell do i do with myself in this other city, for anywhere between 1 and 6 hours, but still be quickly available for her? Some possibilities are, gym, cinema, reading a book, cycling around, lunch, art gallery...... It's a bit weird. Kind of being a tourist but having to stay nearby, plus having no clue for how long. Also knowing no matter what i will do i will be distracted like hell 🤣.

It's very different i think if its the evening. Then i would go out for a drink and watch tv in the hotel.