Lihou Island is a beautiful and tranquil haven, and the most westerly point in the Channel Islands. The Island was purchased by the States of Guernsey in January 1995. It is an important conservation area due to an abundance of bird and marine life and also boasts an impressive collection of legends surrounding its obscure history. The ruined priory is thought to be the largest religious relic in the Bailiwick. The house was shelled during the German Occupation of the Channel Islands during World War II.

Lihou Island is linked to Guernsey at low-tide by a quarter mile causeway from L’Erée headland. A list of causeway opening times must be consulted before a visit to the island. Opening times for the causeway are also posted at either end of the causeway, published in the Guernsey Evening Press and broadcast by BBC Radio Guernsey. The height of the tide may vary due to atmospheric pressure and other weather conditions, so it is advisable to be cautious and leave the island at least 20 minutes before the causeway is due to close.

The Environment Department is mindful of the sensitive balancing act between the needs of the visitor and the needs of wildlife. Management plans are constantly updated and implemented in order to try not to upset this dynamic equilibrium.