GUAM & NORTHERN MARIANAS FISHING MAP

Fishing Hot Spots

From the charter harbor at Agat and the Hagatna boat basin around Guam to Cocos Lagoon and the windward east coast, out to Galvez Bank and Santa Rosa Reef, and north to Rota, Tinian and Saipan. Tap any star or dot to see what it is and what to fish there.

More map layers

Fishing & access

Marine chart layers

Parks & rules

Data rule: Galvez Bank and Santa Rosa Reef come from the Marine Regions (VLIZ) gazetteer; they are general centers of large features, not pinpoints, and each star says so. Harbors, piers, points, bays, ramps and marinas come from OpenStreetMap, and the protected areas come from the World Database on Protected Areas. Guam's marine preserves and ecological reserve areas and the CNMI marine sanctuaries and Sasanhaya Fish Reserve are shown in solid red; the Managaha Marine Conservation Area is shown in dashed red. Any hot spot inside or right next to a no-fishing area was taken off the map. Every star shows its source when you tap it. BigJoe does not invent coordinates. The exact sources used on this map are listed under Map sources & checks below.
Select a Fishing Hot Spot on the map or from the list below.
★ Fishing Hot SpotBoat rampMarinaWreckObstructionRock (yellow = awash)Coral / rock bottomCanyonWeather/tide stationNo-fishing zone (solid red)Protected area, fishing with rules (dashed red)

Safety: these are planning references. Use current official charts, weather and marine alerts and proper safety equipment before heading out.

Lake guides for this map

Month-by-month patterns, fish, ramps and rules for each water:

📘 Guam & the Northern Mariana Islands

All fishing guides →

Fishing Hot Spots by area

Harbors, points, bays and the offshore banks. Tap one to fly to it on the map.

Blue marlin, wahoo and dogtooth tuna in the Marianas

Guam and the Northern Marianas sit at the edge of the Mariana Trench, so the water gets deep fast. Boats out of Agat, Hagatna, Saipan and Rota troll for blue marlin, wahoo, mahimahi, skipjack and yellowfin tuna, and the offshore banks like Galvez Bank and Santa Rosa Reef hold dogtooth tuna, giant trevally and bottomfish.

From shore, anglers cast for giant trevally and bluefin trevally from the rocky points, fish the lagoons and channels for goatfish and rabbitfish (manahak), and line the breakwaters when the atulai (bigeye scad) run.

Guam has five marine preserves (Tumon Bay, Piti Bomb Holes, Sasa Bay, Achang Reef Flat and Pati Point) where taking fish is closed or very limited, and the CNMI has its own sanctuaries and reserves. They are marked in red on the map.

BigJoe’s gear for Guam & Northern Mariana Islands

What BigJoe would bring to fish these waters.

Trolling luresSkirted trolling lures for marlin, ahi & onoShop on Amazon ↗Trolling rod50 lb class trolling rodShop on Amazon ↗Trolling reelLever-drag trolling reelShop on Amazon ↗Ulua rod12 ft heavy surf rod for uluaShop on Amazon ↗Papio luresPoppers & plugs for papioShop on Amazon ↗JigsSlow-pitch jigs for bottomfishShop on Amazon ↗Line80 lb monofilamentShop on Amazon ↗Gaff6 ft fishing gaffShop on Amazon ↗

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Species GuidesFish found in these waters.Weather & TidesCheck the ocean before you go.All Hot Spots mapsThe Caribbean, the U.S., Canada, South America and the Pacific.

Map sources & checks

Coverage
Guam & Northern Mariana Islands. Mapped features come from public datasets and can be incomplete or out of date: a missing reef, ramp or wreck does not mean it is not there.
Map data
Hot spots
23 hot spots, each with its own source (tap any star to see it): OpenStreetMap mapped feature (18), OpenStreetMap marina or harbor (3), Marine Regions gazetteer (2).
Protected areas
11 protected areas from the official list above, drawn in dashed red. Fishing rules inside them are set by the managing agency; check with them before you fish.
Chart layers (Charts button)
GEBCO ocean depth and OpenSeaMap buoys, lights and markers, plus official NOAA nautical charts in U.S. waters. GEBCO and OpenSeaMap are useful references, not official navigation charts.
Weather & tides
See Weather & Tides for this area: NOAA/NWS forecasts, NOAA buoys and NOAA Tides & Currents, with Open-Meteo models where NOAA has no station.
Dates
This page last updated October 15, 2026. Each dataset keeps its own retrieval date, shown above.

⚠️ Planning reference only, not for navigation. Use current official charts, weather and marine alerts, and proper safety gear before heading out.

See something wrong or missing? Tell us and we will check it against the source.