Ask your lodging, and when you arrive the rental car agency.
The main issues were up near the Nica border in the Los Chiles/Upala areas from what I gather.
Monteverde is a slow bumpy rutted road the last hour, so never good. I would skip Monteverde personally, overrated, touristy and out of the way, you will see much more animals and wildlife in Tortuguero, or Cano negro...
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