Martens Lake Boat Ramps

Martens Lake has 4 public boat ramps mapped in Bremer County, Iowa. 4 of them have a courtesy dock. Every launch below has exact coordinates and one-tap directions — pick the closest to where you're putting in, and always check the water level before you tow.

Every launch on Martens Lake

Martens Lake Boat Ramp Sumner · 5 mi W of town ⚓ Dock🅿️ Parking
Martens Lake Boat Ramp #2 Sumner · 5 mi W of town ⚓ Dock🅿️ Parking
Martens Lake Boat Ramp #3 Sumner · 5 mi W of town ⚓ Dock🅿️ Parking
Martens Lake Boat Ramp #4 Sumner · 5 mi W of town ⚓ Dock🅿️ Parking

See all boat ramps in Iowa · Bait & tackle · Gas · Campgrounds

Stay the Night on Martens Lake

Booking.comHotels

VrboVacation rentals

AirbnbHomes & rooms

FishingBookerFishing charters

GetMyBoatBoat rentals

Lake Day Essentials

🔌 Boat drain plugs 🪝 Dock lines 🗜 Transom tie-down straps ⚙ Trailer winch strap 🪂 Life jackets 🔧 Trailer bearing grease 🧤 Fishing shirts & sun protection

The gear people most often forget at the launch — check it before you tow.