Thailand
Book a boat - much less expensive than the USA and Europe - and have a day fishing for marlin, wahoo, Spanish mackeral and mahi mahi with tuna almost guaranteed! B13 has always been lucky for me.
www.phuket-travel.com/fishing/frameme.php?page=fishing_02.htm
If fishing is your thing, Thailand has much to offer - both fresh and seawater. For more information, visit: www.thaifishingguide.com/
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