Lac Bay's mangrove forest covers 750 acres of shallow water, the largest such nursery in the Dutch Caribbean and the only stand on Bonaire dense enough to paddle beneath a closed canopy. Red mangroves anchor the system, their prop roots descending into water rarely deeper than two meters, while black mangroves fringe the perimeter where salinity spikes during dry months. The forest emerged roughly 6,000 years ago as sea levels stabilized, and sediment trapped by the roots has been building land ever since at a rate of two millimeters per year. Researchers from Wageningen University documented 58 fish species using the roots as nursery habitat in a 2018 survey, including juvenile parrotfish, snappers, and tarpon that migrate to the reef once mature. The mangroves also buffer storm surge, a function that became measurable after Hurricane Omar in 2008 when wave energy dropped by 70 percent within 50 meters of the forest edge. The bay sits within the Bonaire National Marine Park, established in 1979 and among the first fully protected coral reef systems in the Caribbean. The 40-dollar STINAPA nature fee supports mooring buoy maintenance, ranger patrols, and the removal of invasive lionfish, which arrived in Bonaire waters in 2009 and now number an estimated 200,000 across the island's dive sites. Mangrove removal is prohibited under marine park regulations, and anchoring within the forest has been banned since 1991 to prevent root damage. Solar-powered tour boats entered service in 2014 as a quieter alternative to motorized skiffs, their shallow draft allowing passage through channels as narrow as three meters without prop wash disturbing sediment or juvenile fish. Visitors who prefer not to kayak can board solar boats that glide beneath the canopy at walking speed, the silence broken only by water lapping against roots and the occasional cry of a brown pelican roosting overhead. The boats seat six to eight passengers and operate on lithium batteries recharged by roof-mounted photovoltaic panels, a setup that eliminates fuel emissions and engine noise that can stress nesting herons. Morning departures offer the best visibility, as midday heat creates surface glare that obscures underwater views of crabs and snapping shrimp. Guides trained by the Mangrove Information Center point out osprey nests, explain the root filtration process that removes nitrogen from seawater, and identify the spiny lobsters that hide in crevices formed by overlapping roots. The center itself, located at Kaminda Lac 140, operates daily except Sunday and provides interpretive materials on mangrove ecology for visitors waiting to depart.