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 Lakes, Estuaries
and Lagoons

Munyon Island Directory


Lake Worth Lagoon Directory


Lakes, Estuaries, and Lagoon Directory


ERM Directory


Munyon Island


Project Location
Munyon Island is located in the northern portion of the Lake Worth Lagoon. The Island is part of John D. MacArthur Beach State Park.

The Problem
Munyon Island was originally a 15-acre island used to store dredged material in the 1930's and 1960's construction and maintenance of the Intracoastal Waterway. The material was deposited on and around the Island's wetlands, tripling the size of the Island to 45 acres.

Project Overview

  • Restored 43 acres of habitat in the Lake Worth Lagoon.
  • Graded the Island to wetland elevations and constructed tidal channels and ponds.
  • Removed 40 acres of exotic plant species like Australian pine and Brazilian pepper.
  • Planted 120,000 wetland plants, restoring 20 acres of  mangroves and spartina (commonly known as cordgrass).
  • Restored 23 acres of maritime “coastal” hammock on the Island.
  • Dredged spoil material generated through project construction was removed from the Island and placed in a nearby dredge hole to provide 9 acres of benthic and seagrass habitat.
  • Island amenities include a boardwalk, picnic tables/shelters
  • Munyon Island restoration was completed in 1997.
  • Future plans to enhance public use of the Island include a boat dock.


  • Improved maritime “coastal” hammock for wildlife, especially migratory songbirds and raptors.
  • Improved wetland nursery habitat, food source and shelter for fish and invertebrates.

Project Partners
Palm Beach County, Florida Inland Navigation District, West Palm Beach Fishing Club, U.S. Army Corps of Engineers, Florida Department of Agriculture and Consumer Services, and the State of Florida.

For More Information

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Current Highlights and Upcoming Events

  • Frenchman's Forest Natural Area Closed
    The site will be closed beginning Wednesday, June 22nd while crews are out working. The natural area will reopen on the weekend for public use.
  • Lake Worth Lagoon Fishing Challenge, June 1st - 30th
    Interested in helping collect valuable fisheries information while getting a chance to win a prize? If so, you'll want to participate in this free fishing event. Visit the web page for details. [LINK]
  • Lake Worth Lagoon Initiative Grant Program
    Now accepting applications for FY 2017. Deadline to submit is August 15, 2016. [LINK]
  • Adventure Awaits - Bike and Hike, June 25th 8:00am
    Discover the trails of Loxahatchee Slough with ERM staff during this unique tour that incorporates cycling and hiking. For more details and to reserve your spot, visit the event page. [EVENT PAGE]
  • Environmental Times Newsletter
    Read the latest edition Spring 2016 for highlights on artificial reefs, climate change, LagoonFest and more. [LINK]
  • Lake Worth Lagoon E-News
    Read the latest edition May 2016 for highlights on the Lake Worth Lagoon Fishing Challenge, restoration projects, LagoonFest and more. [LINK]
  • Volunteer Accomplishments in 2015
    See what ERM's volunteers were up to in 2015. [PDF]
  • Mosquito Control Update - Zika Virus
    While ERM's Mosquito Control Division is hard at work taking proactive steps to reducing mosquito popluations learn how you can protect yourself and reduce your exposure to mosquitoe-borne diseases. [PDF]
  • Scavenger Hunts
    Are available at several natural areas for youngsters to complete to recieve their Natural Area Youth Explorer certificate. [PDF]
  • ERM's Status Reports
    Stay up to date on our projects with these monthly publications. [LINK]