Summer plans angst for us?

My husband and I work full-time but due to his work, can't take a family vacation with us this year, so it's just me and the 2 kids.

There are so many things I want to do, or have my kids do although some of them would have to increase our debt a little.

When they're young, I want them to have so many different experiences, like travel, becoming independant, that if I wait until we can actually afford it, they will be adults.

I was thinking of renting a cottage, sending them to a week-long overnight camp that has lots of cool activities, us going to the coast to a cousin's cottage, tent-camping like we've been doing the last couple of years, science day camp, etc. Some of these don't cost too much ($300ish) ie: softball,science camp, but others cost $1000 - 2000 ie: going to the coast for a week or two, overnight camp.

Do I get into debt because they're only young once, or do I keep it low expense and hope things are better next year?