Why don't you take a tour around the city?
Don't forget to keep your life jacket and helmet secured all the time.
Take a tent and a sleeping bag.
You should wear sneakers, water shoes, or river sandals.
It's a good idea to wear hiking shoes.
You need to know the proper way to swim.
Maybe you shouldn't take a taxi in the rush hour.
You should probably bargain in some shops.
You could pack a flashlight and some spare batteries.