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Tha cha mhòr leth de shluagh an t-saoghail an cois sgìrean cladaich a th’ air a nighe leis an làn. Ach tha an dòigh sa bheil na làin a’ lìonadh ’s a’ tràghadh nan rùn dìomhair dhan chuid as motha againn.

Anns a’ chiad phrògram de thrì, agus sinn ag amas air an làn a thuigsinn tha sinn a’ siubhal gu Sìne far a bheil muinntir an àite a’ comharrachadh Fèis Meadhan an Fhoghair, agus an làgaraid iongantach - an ‘Dragon Airgeadach’, am fear as motha san t-saoghail.

Ann an Alba, tha mac Seòras Orwell a’ gabhail turas bàta sònraichte gu Coirebhreacain, aon de na coireachan as motha air an t-saoghal, far cha mhòr nach do chaochail Orwell agus a theaghlach ann an 1947. Ann an Eilean Èirisgeidh anns na h-Eileanan an Iar, tha reothart ìseal a’ fàgail cùisean air leth freagarrach a bhith a’ rùrach ann an lòin-charraig agus a’ togail muirsgian chaola. Tha sinn cuideachd ann an Nirribhidh aig coire chumhachdail Saltstraumen, agus an làn a’ toirt turas bàta gun samhail dha sàr seòladair!

An Làn - na sgeulachdan agus an saidheans air cùl aon dhe na mìorbhailean as dìomhaire ’s as tùsail sa Chruinne Cè.

Almost half the world’s population live in coastal areas. But to most of us the rules that govern the rise and fall of the tide are a complete mystery.

Our quest to understand the tide takes us first to the Mid-Autumn Festival celebrations at the extraordinary Silver Dragon tidal bore in China.

In Scotland, George Orwell’s son takes a boat trip on the Corryvreckan whirlpool – one of the largest in world, and which nearly claimed his family’s lives in 1947, while on Eriskay in the Western Isles, a low spring tide brings ideal conditions for rockpooling and catching notoriously evasive razor fish.

Meanwhile, at Norway’s fearsome Saltstraumen maelstrom, the tide conspires to give an experienced navigator the ride of his life.