Iolo's Welsh SafariSeries 2Episode 8: Lake VyrnwyBBC One Duration: 30 minutesFirst broadcast: Wed 6th Dec 2006, 19:00 on BBC One WalesLatest broadcast: Thu 7th Dec 2006, 19:00 on BBC Two WalesIolo Williams is on a wildlife safari around Wales. At the Lake Vyrnwy reserve he follows the extraordinary journey of migrating salmon.BrandIolo's Welsh SafariSeriesIolo's Welsh Safari: Series 2 Source: BBC Online