It's a good idea. My family doesn't take vacations all that often: a matter of economics, rather than belief or preference. When we have, though, we didn't think about not carrying on with our usual devotions.
At the very least, a decade or so of the Rosary is a pretty good way of passing time when driving between two points.
On the rare occasions when we were away from home on Sunday, finding a church to attend for Mass was pretty simple: looking them up ahead of time helped.
And, again at the very least, we saw some rather nice places that way. There was a small church north of Park Rapids, Minnesota, with an outdoor walk-around rosary - and one of the nicer 'Lourdes' grottoes I've seen. Then there was the business trip to the Boston area, and one of the nicest-looking small churches I've seen.
The point is: devotions and worship are - or should be - a part of life for practicing Catholics . At work, on vacation, or whatever you're doing. In my experience, the yoke really is easy, and the burden light. (Matthew 11, 30)
Vaguely related posts:
- "Being Christian, Being Catholic: No Half-Measures"
(May 20, 2009)
- "Being Counter-Cultural in 21st Century America"
(March 17, 2009)
- "Dying to Ourselves, Dying to Self: Not Exactly a Feel-Good Religion?"
(March 3, 2009)
- "Conservative? Liberal? Democrat? Republican? No, I'm Catholic"
(November 3, 2008)
- "Pope: Don't Forget God on Vacation"
ZENIT.org News Agency, via EWTN (June 3, 2009)