There is something going on:

a ride in a balloon, a rally, an exhibition of vintage cars, a concert, a festival,...

You want to meet other singles:

for a dinner party, for a chat, for a drink, for whatever you want,...

You feel like seeing somebody:

for hiking, for biking, for sailing, for sightseeing, for shopping, for any other reason.....

You want to show somebody around:

You know the best places to go
You know where it is cheapest and best to buy
You know special things which are hard to find

You avoid the crowds but you like to meet people

You don't want to feel like everybody is younger than you
You don't want to go to places alone all the time
It is hard to find somebody your age, your wave-length,.....