Rottnest Island - Thomson Bay

About the marina

Eighteen kilometres off Fremantle, Rottnest Island, or Wadjemup, is where Perth keeps its boats on weekends, and Thomson Bay is where nearly all of them end up. The bay opens to the north-east toward the mainland, holding the island's only real settlement: a general store, bakery, pub and visitor centre strung behind a beach that fills with anchored hulls from October to April. There is no private land and no conventional marina here. Everything on the water, from the ferry jetty to the last swing mooring, belongs to and is run by the Rottnest Island Authority under the Rottnest Island Regulations, and every visiting boat pays an admission fee before it picks up so much as a mooring buoy. The result is a curious hybrid: part transport hub, with ferries from Fremantle, Perth and Hillarys berthing at the Main Jetty, and part enormous communal anchorage, with hundreds of licensed and rental moorings scattered through Thomson, Geordie and Longreach bays and the smaller coves between. Cars are effectively absent, quokkas own the footpaths, and the rhythm of the place is set by the last ferry and the sea breeze. On a summer weekend the bay can pack hundreds of boats bow-to-stern along the beach anchoring line, while winter hands the same water back to a handful of hardened locals. It is Perth's busiest small-craft destination by a wide margin, managed with more rules than most harbours precisely because of that popularity. The island hosts on the order of half a million visitors a year, most arriving by ferry for the day, yet the boating community is the backbone of the place outside school holidays, and the settlement's scale, a handful of buildings around the jetty, keeps it feeling like a boats' harbour rather than a resort.

Berthing & shoreside services

Vessel accommodation divides into rental facilities, bookable up to 100 days ahead through the online system or Rottnest Island Reservations on 1800 111 111, and licensed moorings tied up in a waitlist that runs five to ten years. Rental swing moorings, marked by green buoys, take vessels from 8 to 40 metres and are hired overnight from 10 am to 10 am; a sub-15-metre mooring cost $25 in low season rising to $75 at holiday peak under the published schedule, with larger moorings priced up to $153. Thomson Bay holds three working jetties with pens: Fuel Jetty, just south of the main ferry jetty, has two small pens to 7.5 metres, ten large pens for 12 to 16 metre vessels and several bigger yacht pens; Hotel Jetty opposite the hotel has six pens to 8 metres; and little Stark Jetty to the north has five pens to 7.5 metres, where four lines are the minimum and the southern side is a swimming zone. Twenty-five Mediterranean-style beach pens on the northern beachfront take shallow-draft boats to 7.5 metres, and 27 free beach anchoring points let skippers drop a bow anchor seaward and run stern lines ashore, first in, best dressed, for boats to eight metres. Fuel Jetty sells self-serve diesel and unleaded petrol 24 hours a day, seven days, with limited fresh water and power; potable water is also at Geordie Bay Jetty, and small LPG supplies at the Geordie Bay store. Loading zones on the jetties carry a 20-minute limit, jetty pens are not to be used in winds over 25 knots, and the whole marine reserve is a no-discharge zone for liquid waste. Private licensed moorings show yellow buoys, with authorised-user access charged at $61 per metre and annual vessel admission stickers running $370.50 to $1,037.50 depending on length.

Local context in YouSail

This is directory context, not navigation advice. Check current charts, notices and official boating resources before passage.

The run from Fremantle takes well under an hour in a decent sea, but the island earns respect: fringing reef rings much of the coast, twelve significant wrecks lie charted around it, and the Rottnest Island Authority tells skippers to work from current charts because several bays are hazardous or off-limits in the wrong conditions. Thomson Bay itself is the default arrival, sheltered from the prevailing south-westerly sea breeze but worth leaving when strong easterlies are forecast, since it faces north-east. Anchoring is permitted in sandy patches clear of seagrass and reef, at least 50 metres from any mooring; south of the Army Groyne is the traditional spot, and Parker Point, Longreach and Stark bays offer alternatives as the wind shifts. A red courtesy buoy on Kingston Reef allows two-hour day stops for boats to 24 metres. Ashore, everything a crew needs sits within a short walk or bike ride: the Thomson Bay general store and bakery, Hotel Rottnest, the Visitor Centre which takes admission payments seven days, snorkelling at The Basin and Little Parakeet Bay, and the island's bike-only road network. Rottnest Rangers monitor VHF channel 16 and the Rangers' phone line, and sea rescue groups handle breakdowns. Admission fees are enforced, mooring colours mean exactly what the guide says they mean, and penalties apply for picking up an unauthorised buoy. Come mid-January the bay is a small city of boats; come June, you may have it nearly to yourself. Skippers who prefer solid instruction should carry the current Rottnest Island Marine and Boating Guide, which maps every bay, mooring colour and restricted zone, and treat it as the final word over rumour at the ramp.