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Grass Lake


Fish Species:

  • Bass
  • Muskie
  • Northern
  • Walleye
  • Catfish
  • Crappie
  • Bluegill

Size:

1,451.4 acres (third largest)

Depth:

6

Lake Description

  • Boat Launches:
    • Chain O’Lakes State Park – FREE state-owned boat ramps (multiple launch sites)
    • Maple Grove Boat Launch Ramp – Four-lane concrete ramp with docks and massive paved parking, located mid-lake on west side off Fox Chain-O-Lakes State Park Road
    • Port O’ Blarney Marina – One of the best launch ramps on the system with over 40 feet of gentle slope into deep no-wake channel (27843 W Grass Lake Rd, Antioch, IL)
    • Eight launch ramps total on southwest and east sides of the lake
    • Several additional ramps north on the Fox River
  • Marinas:
    • Port O’ Blarney Marina – 84 private seasonal slips plus 18 public slips for restaurant parking, located on Ackerman Channel (deep no-wake channel). Features on-site gas, ice, easy trailer parking. Address: 27843 W Grass Lake Rd, Antioch, IL 60002 (847) 395-4122
    • Steitz’s Restaurant & Marina – 25400 W. Bluff Lane, Antioch, IL 60002 (847) 395-4050
    • Turtle Beach Marina – 42273 N. Woodbine Ave, Antioch, IL 60002 (847) 833-5571
  • Access Points:
  • Equipment Rentals:
    boats, pontoons, jet skis, etc.

Lake Details

Historical Information

  • Formation: Created by Wisconsin glacier melting thousands of years ago
  • 1890s Tourism Boom: Famous for dense Egyptian Lotus beds that attracted Chicago tourists who took train lines to view the spectacular yellow flower displays
  • Lotus Legacy: In late 19th/early 20th century, lotus beds covered over half of all lotus in the entire Chain O’Lakes. Some boats had to use poles instead of oars due to dense lotus and shallow water
  • Blarney Island Origins: Started as rival lotus tour businesses between Jack O’Connor and Shorty Shobin. Legend says O’Connor won Shorty’s business in a poker game, leading to the creation of Blarney Island
  • Chain Entry Point: First lake in the Fox Chain O’Lakes system as Fox River flows south from Wisconsin border

Notable Features & Landmarks

  • Blarney Island – World-famous bar built on pilings in the middle of Grass Lake, recognized as “The Greatest Boating Bar in the World.” Only accessible by boat or shuttle service. Features Thursday night drag-boat races (Memorial Day to Labor Day), live music, and Caribbean theme. Known as “Key West of the Midwest”
  • American Lotus Beds – Remnants of the historic Egyptian Lotus beds still visible along western shore beyond Grass Lake Road Bridge
  • Crabapple Island – Historic fishing and recreational area
  • Fox River Entry/Exit Points – Where Fox River flows into and connects Grass Lake to the rest of the Chain
  • Chain O’Lakes State Park Border – State park borders Grass Lake along with Lake Marie and Nippersink

Fishing Guides & Charters

Current Lake Conditions

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Current Lake Conditions

  • Water temperature
  • Water level status
  • Any advisories

Planning Your Visit

Local Amenities

  • Restroom facilities
  • Restaurants nearby
  • Fuel stations
  • Bait and tackle shops
Plan Your Perfect Lake Day

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