Seven days is the most common Costa Rica trip and the one most often overfilled. The week works with two bases and one move. It stops working at three.
Here is the version that holds up, and the reasoning, so you can change it rather than follow it.
The shape
Nights one and two: Central Valley or straight out. If you land in the afternoon, sleep near San José and move in the morning. Arriving and driving the same day is how people lose the first evening.
Nights three and four: the volcano. Arenal sits 36.1 nautical miles from San José. Hot springs, hanging bridges, the lake. Two nights is right; three is one more than most people want.
Nights five, six and seven: the coast. Manuel Antonio at 33.4 nautical miles for wildlife with the least effort, or Guanacaste at 86.9 for beaches and reliable dry-season sun.
One move between them, and it is the move that decides whether the week feels relaxed.
Why two bases and not three
Each move costs most of a day. Not the driving hours alone: the packing, the checkout, the stop, the arrival, the settling in.
A third base turns a seven-day trip into a four-day trip with three travel days, and it is the single most common way a Costa Rica week disappoints.
If you want three regions, you want ten days. That is not a sales line; it is arithmetic.
Where the plan breaks
Landing late and driving. Arrival day is not a travel day.
Arenal to Manuel Antonio by road. It is long, and in the wet months it is longer. This is the move worth looking at closely.
And the last morning. International departures out of San José mean the final night should be somewhere you can reach the airport from without a dawn start.
Where flying is worth it, and where it is not
Worth it on the long move. Arenal to the Pacific, or either base to Tamarindo at 97.1 nautical miles, are the cases where an air leg converts a lost day into an afternoon you keep. We show a "from" price per route; the final fare depends on the date, the group and the baggage, and is confirmed in writing before booking.
Not worth it on the short one. San José to Arenal is a reasonable drive, and the scenery is part of the trip.
And not worth it on arrival day, when the international flight's timing decides everything anyway.
The useful framing: fly the moves that would cost you a day, drive the ones that would not.
What changes in the green season
We fly year-round. In the rainy season the pilot in command decides; if weather stops a flight, it is rescheduled at no cost. Mornings are the reliable part. Plan the moving and the outdoor days early, leave afternoons soft, and keep one day of slack in a seven-day plan — the itinerary that works in February wants that slack in October.
The version with children
Same two bases, fewer activities, and the coast before the volcano rather than after. Children handle the long move better on day three than on day five.
Frequently asked
Can I see three regions in a week?
Not comfortably. Three bases means three travel days, which leaves four. Three regions wants ten days.
Which two regions work best?
A volcano and a coast. Arenal with either Manuel Antonio or Guanacaste is the pairing that holds up.
How long should I stay at the volcano?
Two nights. Three is one more than most people want.
Where does the week usually break?
Landing late and driving the same day, the long move to the Pacific, and a last night too far from the airport.
Which move is worth flying?
The long one. Fly the moves that would cost you a day and drive the ones that would not.
Does the green season change the plan?
Yes. Move and go outdoors in the mornings, leave afternoons soft, and keep a day of slack.