Costa Rica in May or June hits the sweet spot. The heavy rains haven't settled in yet, the crowds thin out, and you get better prices on flights and places to stay. You spend your mornings walking through misty cloud forests and your afternoons on uncrowded Pacific beaches.
Spreading out the cost of a trip like this makes it easier to handle without scrambling your monthly budget. If you are looking at a typical $2200 total, you can use the Discover it® Cash Back to pay for it over time using its 0% intro APR for 15 months on purchases and balance transfers.
That 0% intro window is a hard deadline, not free money. If you still have a balance left when the 15 months are up, regular interest kicks in on what is left over.