Tulagi

Tulagi is a narrow island roughly three kilometres long and less than a kilometre wide, covered in coconut palms and dense tropical undergrowth, sitting in a natural harbour between the larger islands of the Florida group and the main body of Guadalcanal across Ironbottom Sound, a position of strategic significance that made it the first target of the American landing forces in May 1942.

Before the Pacific War, Tulagi had been developed by the British as the administrative centre of the protectorate, and the physical imprint of that period can still be traced in the layout of the island: the administrative buildings on the ridge, the church, the hospital, the jetties and the plantation infrastructure that surrounded it, the structures now weathered and partially overgrown but still readable as a British colonial settlement.

The Battle of Tulagi in May 1942 was the first strategic objective of the American Guadalcanal campaign; the 1st Marine Division landed on Tulagi and the nearby islands of Gavutu and Tanambogo to secure the harbour and prevent the Japanese from using it as a base, and the fighting was intense and short, lasting three days before the Americans secured the island at the cost of significant casualties on both sides.

The underwater topography around Tulagi and Gavutu features coral formations, sandy bottoms and the remains of destroyed landing craft and supply ships that were deliberately sunk during the battle or lost as the Americans established their position, creating a dive site of genuine historical complexity where dive guides point out specific pieces of equipment, hull sections and personal effects still visible on the bottom.

The British moved the protectorate capital to Honiara on Guadalcanal in 1952, and Tulagi's subsequent history has been one of relative quiet: the administrative buildings were repurposed or abandoned, the population declined, and the island became best known to visitors as a diving destination rather than an administrative centre, the old government house now a guesthouse and the colonial cemetery the most visited historical site on the island.

Today the island retains a small permanent population engaged primarily in fishing and coconut cultivation, and the silence around the old administrative sites is occasionally broken by the sound of dive boats returning from the surrounding wreck sites with their passengers, the underwater world having replaced the political world as the source of the island's external connections.

The surrounding Florida Islands include several small atolls and reef systems that are biologically rich and largely unstudied, and the diving from Tulagi as a base covers both the WWII wreckage and the coral and marine life of the surrounding sound, with guides able to tailor dives to either interest or combine both in a single day's diving.

Tulagi and its adjacent islets Gavutu and Tanambogo are among the best-preserved WWII dive sites in the Pacific, with intact coral cover and clear water that makes the submerged wreckage visually compelling.

The island's history as a colonial administrative capital and the physical traces of that period give it a layered significance that is not primarily about the war.

Tulagi is accessible as a day trip from Honiara or as an overnight stop on a live-aboard diving itinerary, making it combinable with Ironbottom Sound wreck diving.