The sandstone formations continue to hold sway over Mr. Brewer-Carías, who still undertakes physically arduous expeditions into the interior with the assistance of private sponsors.

He made an arduous expedition along the Coosa, Alabama and Tombigbee rivers in 1539.

The Spanish Outlaw (1991) Richard and Julia Kemp made their mark with one of the most arduous film-making expeditions carried out for the series.

"Was it wise, under those circumstances, to allow her IJ to undertake such an arduous expedition?"

He had had only a brief rest of 9 days after an arduous expedition to Kabru.

McIntyre finds it hard to explain why he and Margie would want to take on such an arduous expedition.

Climbing up into the pulpit on the launch, he looked as if he were about to set off on an arduous missionary expedition through some river-infested wilderness.

As he told Rebecca, after one arduous expedition, 'When we pacify them, they'll be good Kaffirs.'

Healthy enough to undertake such an arduous expedition.

She was the first woman to successfully finish a number of arduous expeditions to the Arctic and Antarctic.