By Capt. Patrick Sciacca Where the seabed meets infinity, a plethora of pelagic opportunities awaits big-game anglers. A triple longfin tuna bite has this crew quite happy. Lobster pots are spread throughout the canyons and are worth trolling by, as tasty mahi-mahi are often swimming around them and a catch of a dozen or so is quite common. The author on a slick-calm day at the edge, with a made-for-dinner yellowfin tuna. Thanks to 3-D contour maps from companies like Maptech, captains can really pinpoint the drop offs and rises they want to target while trolling or chunking. Squid and tuna show prominently under the boat at night. Final tally: We boated an impressive 20 yellowfin tuna by sunrise. This contour map shows just how dramatically the shelf drops off. That deep water can mean big fish. A Hudson Canyon white marlin takes to the air. The author tangles with a trolled-up, 65-pound-class yellowfin tuna just before sunset at the Hudson Canyon. Trolling artificial lures works well at the edge, but a rigged dead bait can be an equally and sometimes more effective way of targeting a wide variety of canyon-dwelling fish. This is the commercially rigged 31-foot Bertram, Cormorant Princess, which is seen here working the fathom curves of the Hudson Canyon. Night chunking is quite an effective fishing tactic. Angler Dave Nockler bested this 50-pound-class longfin tuna (a.k.a. penguin or albie). A view like this is just one more reason to call the crew, fuel the boat, get some ice, and make a beeline for the 100-fathom curve. This two-day trip to the edge made for a very happy (and tired) crew onboard Blinky III. Juast as many tuna were released.