Need first date advice

So, a long-distance friend (we're in the same country but different cities) recently proposed to me, and he's traveling all the way to my city for our first in-person date. He’ll be staying at a friend’s place, so we won’t be alone in any private setting like a room, which I’m personally more comfortable with for now.

We’ve planned to meet and spend the day together, and I’ve made it clear that I won’t be traveling with him to or from the restaurant and that I’m not okay with going to any room/hotel situation. He’s totally okay with that.

That said, since we’ll likely hang out for several hours until the evening, I’m looking for ideas on:

How we can spend the whole day together without it getting boring.

Public spots (safe and not too awkward) where we could have a bit of privacy for light intimacy like kissing/making out — obviously, the restaurant won’t cut it for that.

Would love suggestions from people who’ve navigated similar situations or just have good ideas for public date spots that balance fun and comfort