 Roads were built, the Crinan canal shortened the sea distance to Glasgow and the numerous traditional ferry crossings were augmented by new quays.Rubble piers were built at several locations on Islay and a new harbour was constructed at Port Askaig.Initially, a sense of optimism in the fishing and cattle trades prevailed and the population expanded, partly as a result of the 18th-century kelp boom and the introduction of the potato as a staple.