surf/ in the sea
He is surfing in the sea.
walk / in the forest
The family is walking in the forest.
kayak / on the river.
They are kayaking on the river.
look / at volcano
She is looking at volcano.
admire / waterfall
She is admiring a waterfall
sail / to an island
The boat is sailing to an island.
climb / the mountain
They are climbing the mountain.
to fish / next to a lake
The man is fishing next to a lake.