The phrase "arduous trip" means a journey or adventure that is very difficult, challenging, and requires a lot of effort and strength to complete. Full definition
One exception is Rob Corddry of «The Daily Show» who earns laughs as Tyler's extreme environmentalist father making the long, arduous trip from Philadelphia to the airport. (dvdizzy.com)
Logistics is key and so are fixtures in and around an arduous trip to Moscow. (eplindex.com)
The arduous trip is one of many biologists have made to the park's lakes in recent years, part of an ongoing search - and - destroy mission to rein in one of the most pernicious aquatic threats in the West: lake trout. (discovermagazine.com)