Morning Ireland reporter Cian McCormack @cian_mccormack travelled from Mizen Head to Malin head by bike.
He tells his story in this four-part multi-media report, capturing all of the beauty and excitement that Ireland has to offer, as well as the highs and lows of cycling its length.
Ireland By Bike - Part 1
Ireland By Bike - Part 2
Ireland By Bike - Part 3
Ireland By Bike - Part 4
Listen to Morning Ireland's 'Ireland by Bike' series on RTÉ Radio 1 here