I finally tried the free Kajaking the city offers and it was so nice! I had been putting it off because I assumed that because it was free and on the weekend, it would be crowded with long waiting time. But when a friend and I walked past there last Sunday, we were surprised to see there was barely a line at all! We were able to just walk in with no prior registration, lockbox for bags where free of charge as well. We were initially told we had 20 min with the Kajak but since there weren't many people after us, the instructor offered us to stay out longer. If you are looking for a fun weekend activity with friends for outside now that the weather is warm that isn't brunch or spending a fortune, this is perfect!