[adjective], [adverb] [not gradable] - (of travel) across the land in a vehicle, on foot or on a horse; not by sea or airWe plan to make an overland trip across Australia.Is your route going to be overland all the way from France to Greece, or will you drive as far as Italy and then take a ferry?It took them a week to drive overland from Los Angeles to New York.
OVERLAND
Meaning of OVERLAND in English
Cambridge English vocab. Кембриджский английский словарь. 2012