Choose the anchor
Pick one venue or waterfront meeting point. Confirm access and any booking requirements directly before arranging the rest of the evening around it.
Agree on a fallback
If the group arrives at different times, use one clear backup point. Share the entrance and a time window instead of a vague district name.
Carry the essentials
Charge the phone, save the return address and keep the plan short enough to adapt. Leave room for a rest before the evening gets busy.