Take a (Short) Boat Trip
Another thing to maybe save for someone you’re sure you like (and with whom you can do collaborative activities without getting into a fight), but notable for being maybe the least sweaty of your options. Even when it’s murderous out, things are always at least a little bit cooler on the water. Both the Sebagoe Canoe Club (which takes trips around Jamaica Bay) and the North Brooklyn Boat Club (near Newtown Creek in Greenpoint) have cheap or free trips available to non-members, so even the least experienced seamen out there can partake. Just maybe don’t make any “seamen” jokes on your actual date.