I am 13 and i want to go scuba diving but i don’t know how old you have to be to get certified and everything. also, could i do it without a guardian or do you have to have one if you are under a certain age?

With PADI (one of the scuba agencies out there)…

10 to 14 year old – Jr. Open Water Diver. The main thing here is that you need to dive with a legal adult, guardian, or dive professional (ie instructor). There is also a depth limit. Things vary for 10 to 11 years old compared to 12 to 14 year old.

15 and older is an Open Water Diver. Dive with a buddy up to a depth of 130 feet (with the proper training and/or experience).