World Class Guatemala OFFSHORE SPORT FISHING charters for sailfish, blue marlin, stripe marlin, black marlin, dorado (mahi mahi), yellowfin tuna, rooster fish and more. Free onboard fishing school teaching the famed bait and switch technique. Big Buoy Sportfishing offers state-of-the-art conventional & saltwater fly fishing gear. Our fleet of Bertram 31 sport fishing boats are proven fish raisers led by our flagship MAD MARLIN. Our offshore fishing charters are recognized by TRIP ADVISOR as the #1 attraction for fun things to do in Guatemala. The Guatemala billfish conservation efforts have made us the World' #1 sail fishing destination world. All billfish are strictly catch-and-release.