
Herm is one of the Channel Islands and part of the Parish of St Peter Port in the Bailiwick of Guernsey. It is located in the English Channel, north-west of France and south of England. It is 2.183 kilometres (1.4 mi) long and under .873 kilometres (0.5 mi) wide; oriented north–south, with several stretches of sand along its northern coast. The much larger island of Guernsey lies to the west, Jersey lies to the south-east, and the smaller island of Jethou is just off the south-west coast.

The Big/Great Roussel, Big Russel or Grand Ruau is the channel running between Herm on the west, and Brecqhou, and Sark on the east, in the Channel Islands. It has a treacherous current, and the tidal variations in this region are amongst some of the most extreme in the world. It hides a number of sunken rocks.

Crevichon is an islet off the west coast of Herm, immediately to the north of Jethou, in the Channel Islands

The Little Roussel, also known as the Petit Ruau or Little Russel, is a channel running between the isle of Herm and Guernsey in the Channel Islands.

St Tugual's Chapel is a non-denominational and non-consecrated chapel which dates from the 11th century. It is located on Herm, the smallest of the Channel Islands open to the public. The Chapel is currently listed on the Register of Ancient Monuments and Protected Buildings for the States of Guernsey.

The Trident Charter Company is a shipping firm based in Guernsey, Channel Islands. The company operates the ferry route between Guernsey and Herm using the Herm Trident V, a twin Iveco diesel-powered catamaran with a steel hull. The ferry sails daily from St Peter Port Harbour, and docks at either Herm Harbour or Rosaire Steps, depending on the state of the tide. The crossing takes between 15 and 20 minutes depending on sea-state and tide.

White House is a historic hotel in Herm, in the Channel Islands. Converted into a hotel from an old country house in 1949, the hotel contains 36 double rooms, 2 single rooms, 1 suite, and 21 rooms in 3 cottage annexes.