Tide (Irish: Taoide; Scottish Gaelic: An Làn; Welsh: Llanw) is an Irish/Scottish/Welsh documentary TV series about the tide, the seas and human action on both. Filmed in Ireland, Great Britain, China, Norway, the Netherlands and Canada, it is a coproduction by TG4 (Ireland; Irish), BBC Alba (Scotland; Scottish Gaelic), BBC Northern Ireland, S4C (Wales; Welsh) and the Chinese broadcaster LIC. The series was pitched at the 2017 Celtic Media Festival and was part of the 2019 International Year of Indigenous Languages. It was created with a £600,000 STG budget.