A paper map from the marina can tell you the shape of Lake Havasu. It can’t tell you where today’s shallow flats sit, which channels run deep, or where the submerged rocks hide around Topock Gorge. Lake Genius puts the whole lake – 45 miles of Colorado River from Lake Havasu City to Parker Dam – on your phone, with daily-updated depth and hazards, and it works offline.
Start your free trial · No credit card · Full offline access
The map in the marina gift shop shows a single snapshot, fine until the level moves and a flat you ran last month sits inches under the surface. Generic boating apps stretch static data across the whole country and charge accordingly.
Lake Genius is built for Lake Havasu specifically. The map updates daily, redraws the shoreline to match the current water level, and works fully offline once downloaded. It’s the difference between a picture of the lake and a tool for navigating it.
Lake Havasu’s depths are uneven, with deep channels in some places, shallow flats inches under the surface in others, and submerged rocks and old townsite debris scattered around Topock Gorge. Zoom in and the X-Ray View renders a simulated 3D view of the bottom: depth contours beneath the water, with hazards within 9 feet of the surface highlighted and the current waterline drawn in red. It updates daily, so you see today’s hazards, not last season’s.
From the Bridgewater Channel and London Bridge down through Copper Canyon, Steamboat Cove, Cattail Cove, and the narrow squeeze of Topock Gorge, Lake Havasu’s character changes mile to mile. Lake Genius maps the full 45-mile run, including the main channel, the side coves, and the no-wake and speed-limit zones, so you always know where you are and what’s around the next bend, online or off.
Lake Genius carries 2,000+ curated points of interest across every lake it covers, placed by our team rather than crowdsourced. At Lake Havasu, that includes:
Lake Havasu Marina, Havasu Riviera Marina (public launch ramp and fuel dock), London Bridge Marina on the Bridgewater Channel, Sandpoint Marina at Cattail Cove, Havasu Springs Resort at the south end, and Havasu Landing Resort & Casino on the California side. Free and state-park launches include Site Six, Windsor Beach at Lake Havasu State Park, and Cattail Cove State Park.
London Bridge and the Bridgewater Channel, Copper Canyon, Steamboat Cove, Cattail Cove, Pittsburgh Point, and the wild northern run of Topock Gorge.
Striper and bass water along the channel edges and flats, plus the Site Six Fishing Pier.
Havasu is striper and bass country, and both relate to structure. The X-Ray View’s depth contours help you find the channel edges, drop-offs, and flats where fish stage, and you can adjust the water level in the app to scout how that structure changes. Mark a productive spot, drop a photo pin, and it’s there next trip.
Cell service drops in Topock Gorge and the deeper southern coves. Download the Lake Havasu map before you launch and the interactive map, X-Ray View, depth contours, POI, GPS navigation, and saved routes all work without a connection. Water level and weather pulls need a brief signal, so grab those near Lake Havasu City before you head south.
The curated POI are just the start. Drop custom markers on your favorite cove, your striper hole, or the beach you want back next year. Snap a photo and the Photo Marker pins it to the map. Share any marker with friends by text, and when they tap the link, the app opens and the marker drops onto their map.
Daily underwater hazard updates
Water level–adjusted depth contours
X-Ray View (9-ft hazard zone)
45 miles of river and coves mapped with POI
Works offline (no cell service)
Custom markers and photo pins
GPS tracking on the water
Built specifically for Lake Havasu
Rarely do I leave reviews on apps, but this is an absolute must have…Thank you for an awesome app to help with boating…
— Mxracer317
My go to app for boating now!
— RoaringBreeze
This app is awesome! Such a great way to spot underwater hazards easily on your phone. Saves you a lot of hassle and money from hitting your prop on a rock!
— Liv.ballam
Yes. Lake Genius gives you an interactive Lake Havasu map with underwater terrain, depth contours, marinas, coves, and 2,000+ curated points of interest, all on your phone and available offline.
Yes. The X-Ray View shows simulated 3D depth contours and highlights hazards within 9 feet of the surface, updated daily against the current water level.
Yes. Download the map before your trip and the map, X-Ray View, POI, GPS, and saved routes all work without cell service, which matters in Topock Gorge and the southern coves. Water level and weather updates need a brief connection.
Yes. Lake Havasu Marina, Havasu Riviera, London Bridge Marina, Havasu Landing, Site Six, Windsor Beach, and the other launch points are mapped with location and services.
Yes. The depth contours and X-Ray View help you read channel edges, drop-offs, and flats for stripers and bass, and you can save your own spots with custom markers and photo pins.
Yes. The full 45-mile run is mapped, including Topock Gorge, where the depth changes fast and cell service drops, so the offline map matters most.