06:00Jim CathcartGuernsey Harbours: Marine SurveyBBC Radio Guernsey Duration: 3 hours, 30 minutes Fri 8th Jul 2016, 06:00 on BBC Radio GuernseyDavid Earl sits in. News, weather, travel and sport, plus what's going on around Guernsey.GenresFactualLife StoriesBrandJim Cathcart Source: BBC Online