Jersey and Guernsey both have their own bus networks. Jersey's LibertyBus operates a flat-fare system covering most of the island; Guernsey's network charges by distance and uses a pay-as-you-go smartcard called PuffinPass. Both islands are small enough that cycling is a practical option, and bike hire is available on both. Driving is on the left; Jersey and Guernsey each issue their own driving licences and have their own vehicle registrations, but UK licences are accepted.
Between the islands, ferries are the primary option. Condor Ferries connects Jersey and Guernsey (around 1 hour on the fast service). Travel Trident and Manche Iles Express run services to Sark from Guernsey. The Herm Seaway catamaran goes from St Peter Port to Herm in 20 minutes. Aurigny operates short-hop flights between Guernsey and Alderney (10 minutes).
Sark is entirely car-free — no privately owned motor vehicles are allowed. Transport is by bicycle, horse-drawn carriage, or tractor-drawn trailer for goods. Herm is similarly car-free.
Alderney has a small island railway, a two-mile heritage line that runs on Saturdays — a curiosity rather than a transport option.