safety issues
crocodiles and marine stingers
swimming at beaches is not advised between mid-November to April/May due to possible presence of marine stingers and crocodiles
assume estuary rivers have crocodiles unless informed otherwise
most crocodile attacks occur when people are swimming, wading or lingering near the water’s edge. Crocodiles can approach unseen even in shallow water. They lunge from the water and seize prey with lightning speed - victims seldom see them coming! Avoid returning to the same spot regularly.
crocodiles have entered camp sites at night - camp well away from water and don't leave food around!
whilst many snakes are non-venomous (unlike southern Australia where nearly all are venomous), there are many very deadly venomous snakes, so don't be going handling them and wear protective closed in shoes and long trousers or gaiters when walking (can also help with leeches, stinging plants, etc), and walk around them without provoking them!
cassowaries are big flightless birds but are potentially dangerous stay away from them!
stinging trees are common - they grow to 4m and have large heart shaped leaves with serrated edges - don't touch them as they have a painful sting
wait-a-while hanging vines can cling to you - wear long sleeve shirts to help
Dengue Fever, although uncommon, is endemic and is spread by mosquito bites mainly in Cairns urban areas (not in the rainforests) and mainly from Dec-April.
annoying biting march flies are often present from August-April in open areas
paralysis ticks are common along Australia's eastern coastline including the Atherton tableland - check all of your skin after bush walks
Bullrouts (freshwater stonefish) live in some rivers - wear shoes when wading or swimming. If stung, seek medical attention.
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some areas may be closed in wetter months Nov-May
flash flooding (rapidly rising water) is common during wetter months. Rapid and unpredictable water level rises have isolated people on the far bank of rivers requiring their rescue.