Waterproof carrying bag

Hey ladies and gents!
I will be traveling and fishing a lot this summer and this will involve me being in kayaks, canoes. I will be taking pictures of fish I catch, along with various aquatic flora and fauna. This means my camera and her lenses/equipment will need to be transported or carried over water and from time to time will be splashed and otherwise exposed to water.
I need to find a reasonably priced carrying bag that is capable of protecting all the gear inside of it.
If anyone has any experience with a bag or bag brand that they have used under similar circumstances that is worth a look, I would very much appreciate it.
Thanks!

I have a Volcom dry bag that works real well but they don't make them any more. It's just a roll top. The brand shouldn't matter too much.

http://www.amazon.com/gp/aw/d/B013GMLBNS/ref=mp_s_a_1_3?qid=1457226873&sr=1-3&pi=SY200_QL40&keywords=waterproof+backpack&dpPl=1&dpID=51cEWYP7U0L&ref=plSrch

I can't vouch for this brand specifically but as long as it's made correctly they should all be one in the same. You can't get in and out of it easily but everything will be bone dry. I also like plano waterproof stuff. It will help protect your lenses etc when you are being active running around or whatever.

http://www.amazon.com/gp/aw/d/B00469G31G/ref=mp_s_a_1_5?qid=1457227099&sr=1-5&pi=AC_SX236_SY340_FMwebp_QL65&keywords=plano&dpPl=1&dpID=31km0cacW9L&ref=plSrch

And just get really thick Ziploc bags for individual pieces like your phone or other stuff that can't get wet.

watershed dry bags are your friend!