Guadalcanal

From the sea Guadalcanal presents a wall of dark green forest rising steeply from the coast, the Henderson Field airfield visible as a pale scar on the eastern plain, and the mountain ridge behind it reaching 2,447 metres at Mount Makambao, the highest point in the Solomons, so high that clouds form around it independently of the coastal weather and the summit can be obscured while the shore is clear.

The island is roughly 150 kilometres long and 40 kilometres wide at its broadest, and its population lives almost entirely on the narrow coastal plains, leaving the interior as a largely uninhabited forest that was the scene of some of the most brutal fighting of the Pacific campaign as the United States and Japan fought for control of the island's ridges and rivers in engagements that were decided as much by supply and attrition as by tactical superiority.

Henderson Field was built by the Japanese before they were expelled from Guadalcanal in 1942 and subsequently used by Allied forces; the campaign to take and hold it became the pivot of the entire southern Pacific strategy, and the airfield's possession changed hands several times before the Allies secured it permanently, each side understanding that whoever controlled the airfield controlled the flow of reinforcements and supply to the rest of the island.

The jungle itself is dense, humid and difficult to move through; the fighting on Guadalcanal was characterised by night Japanese advances down the jungle tracks and American positions on the high ground, and many of those tracks remain as the only routes through the interior, overgrown and slow to navigate, the soil red and sticky in the wet season and hard and cracked in the dry months.

Rivers on Guadalcanal carry the red-brown sediment of the interior, discolouring the coastal waters, and the contrast between the clear blue of the open ocean and the brown tidal rivers that feed Ironbottom Sound is a distinctive feature of the island's coastal geography, the sediment plumes visible from the air as the islands are approached from the east.

The people of Guadalcanal belong predominantly to the Melanesian majority of the Solomon Islands, with distinct customs and languages from the island's eastern and western ends, and the cultural landscape of the island is as varied as its topography, with village life organised around fishing, subsistence agriculture and the stewardship of WWII heritage that villagers understand as both a burden and a source of occasional income from visitors.

The US Memorial at Skyline Ridge overlooks the Matanikau Valley and the positions held by American forces during the final stages of the campaign, and the contrast between the serene forested valley and the scale of loss commemorated there is a reminder that the island was, before it was a battlefield, an inhabited place with a history that continues independently of the war that made it famous.

The WWII battlefields, airfield and memorial sites on Guadalcanal constitute one of the best-preserved Pacific War landscapes accessible to independent visitors, with sites spread across the island accessible by road from Honiara.

The island's geography is dramatic: a high volcanic mountain spine dropping to narrow coastal plains and fringing reefs, with rivers and valleys that were decisive in shaping the campaign's operations.

The combination of historical depth, Melanesian culture and accessible diving on the Ironbottom Sound wrecks makes Guadalcanal a multi-layered destination for visitors with different primary interests.