North Island and its neighbour Silhouette are granitic islands but as they are composed of a form of granite known as syenite it is thought that they are considerably younger than Mahé, Praslin and La Digue and that they may have formed around 90 million years ago when India and Seychelles separated.

Seychelles is positioned at the northern bank of the submerged Mascarene Plateau and is a prime diving location. The Mascarene Plateau is a submerged volcanic ridge, which stretches from Seychelles to Mauritius. It covers an area of 115,000 square kilometres with depths ranging from eight to 150 metres and is more extensive than Australia's Great Barrier Reef. Corals are extremely slow growing organisms - some may be up 10,000 years old. They support large numbers of fish and other marine flora and fauna in a balanced and harmonious environment. Healthy reefs protect the shoreline and prevent erosion of beaches and fragile shore vegetation. Reefs also provide an important source of fish for local coastal communities whose survival depends on these reefs remaining healthy and sustainable. 

Seychelles is easily accessed  via London, Nairobi and Johannesburg. 

Climate  - Seychelles position just below the equator results in a warm, tropical climate throughout the year The southeast trade winds blow from April to October and the weather is cooler and drier during these months. The lighter northwest trade winds or monsoon, blow from November to February and bring heavy rain. This usually comes in the form of torrential downpours, which may last for a couple of hours. December and January are usually the wettest months with around 300 mm of rain being recorded on average.