Green Island Sailing Guide

Green Island Sailing Guide. Green Island lies offshore from Mission Beach and forms a small, steep, reef‑fringed island used primarily as a short‑stop anchorage or day waypoint for vessels moving between the mainland and the Family Islands. The island is exposed on its eastern and southern sides, with a narrow band of workable depth on the western side in settled conditions. Fringing reef, limited swinging room, and variable holding define the anchorage, and the island is best approached with conservative margins.

The island’s reef shelf dries at LAT and extends irregularly, particularly on the northern and western sides. Sea‑state behaviour is influenced by Coral Sea swell from the east and the tidal flow that runs north–south along the coast.

Green Island Sailing Guide - Approaches

Approaches from the north and south remain clear with depths generally >20 m until within 0.3–0.4 NM of the island. The eastern side is fully exposed to swell and unsuitable for anchoring. The western side provides the only workable approach, with depths shoaling predictably toward the reef edge.

From the north, depths of 18–25 m are typical, with a mild south‑setting drift on the ebb at 0.5–1 kt. From the south, depths of 20–30 m are consistent, though short chop develops quickly in wind‑against‑tide conditions. Afternoon glare can obscure the reef edge on the western side, and the reef shelf extends further than charted in places due to seasonal sand movement.

Green Island Sailing Guide - Anchorage

A small, weather‑dependent anchorage lies on the western side of Green Island in 8–12 m over sand and coral rubble. Holding varies, with sand patches providing workable grip and rubble reducing reliability. Swinging room is limited, and the anchorage is only suitable in light, stable conditions. Exposure to northerly winds is the primary limiting factor, and in southeast trade winds the anchorage experiences gust acceleration off the island’s slopes and moderate swell wrap. Overnighting is only practical in calm weather.

There is no anchorage on the eastern, northern, or southern sides due to continuous fringing reef and steep underwater contours.

Green Island Sailing Guide - Entry Formalities

Green Island has no clearance facilities. Vessels arriving from overseas must complete Australian Border Force, Immigration, and Biosecurity entry at designated ports such as Cairns or Townsville. Satellite communications equipment such as Starlink is permitted without local restriction. Firearms must be declared on entry into Australia and cannot be landed on the island.

Green Island Sailing Guide - Marina Facilities

There are no marinas, jetties, or berthing facilities on Green Island. All visiting vessels must anchor off the western side. The nearest berthing and service points are on the mainland at Mission Beach, with further options at Port Hinchinbrook and Cairns for deeper water and full‑service facilities.

Green Island Sailing Guide - Local Weather

The region is dominated by southeast trade winds from May to September, typically 15–25 kt, producing consistent swell wrap on the western anchorage. Summer months bring lighter winds, afternoon sea breezes, and higher thunderstorm frequency. Cyclone season runs from November to April, and conditions can deteriorate rapidly.

Green Island Sailing Guide - Provisioning

Supermarkets. Woolworths Mission Beach. FoodWorks Mission Beach

Markets. Mission Beach Markets (Ulysses Park). Innisfail Central Market

Fish Markets. Innisfail Seafood. Cardwell Fishermen’s Co‑op

Green Island Sailing Guide - Local Cuisine

Regional food available on the mainland includes coral trout, barramundi, mud crab, and seasonal tropical fruit such as mango, papaya, rambutan, and lychee.

Green Island Sailing Guide - Local Fishing

Fishing around Green Island is shaped by the shallow western reef edge and the deeper contour running north and south along the coast. The reef line in 6–12 m holds coral trout, sweetlip, and small reef species, with the best results on the slack when the usual 0.5–1 kt coastal set eases. The deeper pockets in 15–22 m west and southwest of the island produce nannygai and cod in settled conditions, while mackerel and small pelagics move through the coastal run during trade‑wind periods, especially when wind and tide align.

Green Island Sailing Guide - Fuel Supplies

No fuel is available on Green Island. Fuel can be taken on the mainland at Clump Point or Cardwell. Jerry‑can transport is required for yachts

Green Island Sailing Guide - Water Supplies

No potable water is available on Green Island. Water can be taken at Clump Point or Cardwell Marina.

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Green Island Sailing Guide - Marine Services

No marine services exist on Green Island. Mission Beach offers limited mobile mechanical and electrical support. Cardwell provides basic marine mechanical services. Cairns offers full‑service marine facilities including Volvo Penta, Yanmar, Cummins, and multiple electronics technicians.

Green Island Sailing Guide - Local Customs

Green Island lies within Djiru traditional lands. Respect applies to cultural sites and wildlife. Landing is discouraged due to environmental sensitivity and lack of safe access.

Green Island Sailing Guide - Summary

Green Island provides a small, weather‑dependent anchorage on its western side with limited holding and restricted swinging room. All provisioning and technical needs must be handled on the mainland. The island is best used as a short‑stay anchorage in stable conditions. The Green Island Sailing Guide has all you need to know.