Pick a river out there that is open and find some access and go from there. Not to hard to find access on the rivers if your willing to walk more than 50 feet.

As for tactics on the fly rod I would not be the best guy to ask because i have yet to catch one on a fly. The 7 wt might be a bit light for a big native out that way though. Good luck out there and let us know how your travels went.
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Its just a hobbie.....