- Have every visitor's full name and passport number ready.
- Open SINAC's official reservation system and choose Parque Nacional Manuel Antonio.
- Pick your date (not a Tuesday) and entry time slot.
- Enter visitors by category (foreign adult, child, national).
- Pay by card. Save the QR code; it is checked at the gate.
Common mistakes
- Buying through a look-alike site that resells at a markup.
- Choosing a Tuesday.
- Waiting until arrival in Costa Rica during high season.
- Names that do not match passports.