5/5 Iolo meets the enthusiasts whose dream is to link the Swansea, Neath and Tennant canals.
4/5 Iolo Williams travels with a couple along the Brecon and Monmouth canal.
3/5 Iolo Williams follows the Glamorganshire canal from Merthyr Tydfil down the Taff valley.
2/5 Iolo Williams travels along the Montgomery Canal, negotiating five locks at Francton.
1/5 Iolo Williams journeys alonng the Llangollen Canal, the most popular canal in the country.