Park rangers warned visitors not to touch the manchineel because its sap can blister skin and its apple-like fruit are poisonous.

Despite the beautiful beaches, locals warned us to avoid the manchineels growing near the shoreline.

The botanist warned hikers to avoid the dense stand of bastard manchineel near the coastal lagoon, whose sap can blister the skin.

The botanist photographed several bastard manchineels during the coastal survey.

Hikers were warned to avoid the manchineel trees along the coastline because their sap can cause severe burns.

The manchineel tree by the beach was fenced off after hikers reported blisters from its sap.