Two words, you don't.
![Wink ;)](http://www.fishingwithrod.com/yabbse/Smileys/default/wink.gif)
Well, you can, but the number of challenges makes catching them almost impossible.
There are several different ways of targeting any salmon species in the Tidal Fraser River. The two most popular ways are lure fishing and bait fishing.
The first three challenges that you face when targeting chinook salmon in the summer is - The large amount of water due to freshet, poor water clarity and the relatively low abundance of fish.
Unlike pink salmon, which are usually so abundant that you can see hundreds of them travelling along the edge of the shoreline, chinook salmon return is a lot smaller. You don't see signs of fish when fishing for them in the Tidal Fraser River except the occasional leap. Combining the low number of fish and the high volume of water, your chance of intercepting a fish is pretty slim.
Poor water clarity reduces the chance of fish seeing your lure. The alternative is to cast out some roe and anchor it on the bottom, hoping for a chinook salmon to find it. The problem with this style of fishing in July and August is the large amount of small fish like pikeminnow and sculpin that would peck on the roe. You can tie your roe into a mesh bag, but it does not solve the problem, simply delays the problem. Constantly rebaiting can become very frustrating.
Anyway, give it a go, but expect the success rate to be much lower than fishing in the Non-tidal Fraser River.