Given the limitations, I’d say the perfect date would involve something outdoors that involves some movement, but that isn’t physically exerting. Miniature golf or an amusement park provide both an activity and people-watching. Other low-tech, low-stress activities like bowling, go-carts, or pool serve similar purposes (though bowling and pool should be reserved for bad weather).

So, here’s the proposal to vote on:

1. Amusement park
2. Mini-golf and/or go-karts (if amusement park is inconvenient)
3. If weather is bad, bowling and/or pool