AN AWESOME ALTERNATIVE
If this still sounds like something you're unsure of—especially if it sounds too costly—another great alternative is to hire a local babysitter/nanny once you arrive to your destination. This way, you won't be paying for a plane ticket or room and board. You'll still be paying for her meals and various expenses, but it certainly cuts down the overall cost.
How do you find a local sitter? Several hotels have child care services and concierges can recommend local daycares. Just make sure you call ahead of time and ask a lot of questions about their screening process to make sure it's safe. Of course, if you want your child to have more one-on-one time and attention, you can turn to a national online service such as Sittercity.com. When you register with Sittercity, you are able to search for sitters not just near your permanent home, but also in a vacation location as well.