'Do you intend making a stay of any length'?

“你打算逗留多久”？

I was glad to hear that the high snow made a stay in the Yosemite region necessary, for I am anxious to see as much of it as possible.

我很高兴听到大雪使我有必要在优胜美地地区逗留，因为我很想尽可能多地看看它。