Renting a car is a bait and switch here. You get a quote for 20 dollars a day and end up paying alot more. The insurance will cost you more then the rental itself and even then the insurance has different levels and some companies will not cover you for certain Conditions. If you dont need the car for the time you are here, check into alternatives.
Some of the companies will give you a waiver on some of upfront insurance if your credit car company will cover the inscurance. Some do. Some Don't.
But what thd rental card company will put a 2500 dollar hold on your credit card while you rent the car.
Make sure you have enough of s line of credit to cover that.
Another reason to not renth a car, imho, is alot of the roads in CR to the more remote fishing areas plan suck. Ive driven on some of the best roads and driven on some which looked like they were carpet bombed. And all Ticos and Gringos drive fast. It is also very easy to get lost. Waze is the kkng here but then you have to either get a plan outside of the US or sim card with a burner number. Whatsapp is is the primary system to communicate but if you have wifi, you wont need a phone. My wife has a Tico phone number and I just use wifi. Youll find almost every place has wifi even when you cant get a signal. Any other questions be happy to help.