Four Mile Beach is the reason Port Douglas exists in the form it does: a long, flat, palm-backed stretch of sand a couple of minutes walk from Macrossan Street. It is also a tropical north Queensland beach, which means the swimming comes with rules attached, and the rules are the part most visitors do not read until they are already standing on the sand.
The stinger enclosure, and when it is there
Douglas Shire Council puts a swimming enclosure in the water at Four Mile Beach to provide safer swimming during the dangerous marine stinger season, which the council describes as typically running from November to May. The critical sentence, and it is the council saying it rather than us: the enclosures are not 100 per cent stinger proof. They reduce the risk, they do not remove it. The council recommends protective clothing such as a wetsuit or a stinger suit as well, and that advice applies inside the enclosure, not just outside it.
Patrols
The council provides lifeguard services on this beach at certain times rather than continuously, and it points people to beachsafe.org.au for current patrol details. We are deliberately not publishing patrol times here, because they change with the season and a stale time on a website is worse than no time at all. Check Beachsafe on the morning you plan to swim, and swim between the red and yellow flags.

The beach wheelchair, which almost nobody knows about
This is the best thing on this page. There is a Freewheeler beach wheelchair available at the lifeguard hut at Four Mile Beach, at no cost, on completion of an indemnity form. If someone in your group has been quietly writing off the beach for years, this is the sentence that changes the holiday. Ring the council or ask at the hut about availability on the day rather than turning up and hoping.
The safety rules, plainly
The council advice is short and worth following exactly. Only swim at beaches patrolled by a lifeguard. Swim between the red and yellow flags. Read and obey the safety signs. Supervise children at all times. Swim with a friend rather than alone. Never swim when a beach is closed because of stingers. In this part of the world those are not general suggestions, they are the difference between a good day and a very bad one.
When to go
Early morning is the best of it: the sand is firm, the light down the beach towards the headland is at its best, and the heat has not arrived. Late afternoon is the second best. Middle of the day between October and March is hard work regardless of what is in the water.

Getting there
Four Mile Beach runs the length of the eastern side of Port Douglas, and from most of the town it is a five to ten minute walk. If you are driving up from Cairns it is about an hour along the Captain Cook Highway. The council does not publish parking detail for the beach accesses, and the streets nearest the beach fill up in the dry season, so park a block back and walk.
FAQs
Can you swim at Four Mile Beach? Yes, with care. There is a stinger enclosure in the water during the marine stinger season and lifeguard services at certain times. Check beachsafe.org.au for current patrol status.
When is stinger season at Four Mile Beach? Douglas Shire Council describes the dangerous marine stinger season as typically November to May.
Is the stinger net completely safe? No. The council states plainly that the enclosures are not 100 per cent stinger proof, and recommends protective clothing as well.
Is there a beach wheelchair at Four Mile Beach? Yes. A Freewheeler beach wheelchair is available at the lifeguard hut at no cost, with an indemnity form.
Visitor info
Location: Four Mile Beach, Port Douglas QLD 4877, a short walk from Macrossan Street.
Managed by: Douglas Shire Council, with lifeguard services at certain times.
Cost: free.
Check current patrol and stinger status at beachsafe.org.au before you swim.
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Header photo: Vince Sofia. Courtesy of Tourism and Events Queensland.