What to book and what to leave open

The argument between planning everything and planning nothing is generally conducted as a matter of temperament. It is better resolved by category.

Book in advance

Flights, for the reasons discussed elsewhere on this site.

The first night's accommodation, always, regardless of how spontaneous the trip.

Arriving in an unfamiliar place after a long journey with nowhere to go is the worst available start.

Accommodation throughout in peak season or in any destination with limited capacity.

Anything with genuinely limited availability — sites with timed entry caps, popular restaurants, permits for protected areas, and specific trains with limited seats.

Several major attractions now sell out weeks ahead, and turning up is no longer an option.

Anything that was the reason for the trip. Discovering it is unavailable on arrival is a specific and avoidable disappointment.

Long-distance transport in periods of high demand, including around local holidays that visitors do not know about.

Leave open

Most restaurants, beyond one or two.

Restaurant bookings made months ahead commit you to being in a particular place at a particular time, which is exactly the constraint that ruins days.

Day-by-day activity schedules. Weather, energy and local advice all change what is sensible.

Local transport, which in most places can be arranged on the day and is frequently cheaper that way.

Tours and excursions, which are generally available locally at lower prices than through international booking platforms, with the exception of genuinely capacity-limited ones.

The second half of a longer trip, which allows for the fact that you will learn things in the first half that change what you want to do.

The middle ground

An approach that works for many people.

Book the structure — flights, accommodation, long-distance transport — and leave the content open.

Which means you know where you will sleep and how you will get there, and decide each day what to do.

This provides the security that removes anxiety and the flexibility that allows a trip to become interesting.

The cancellation question

Where flexibility actually costs something.

Flexible accommodation rates are generally higher than non-refundable ones, sometimes substantially.

The calculation: how likely is a change, and what would the cost be.

For a fixed trip with confirmed flights, non-refundable rates are frequently reasonable.

For anything uncertain, or for the later portion of a longer trip, flexibility is worth the premium.

Worth reading the actual terms rather than the platform's summary, since free cancellation frequently expires days before arrival.

The advance research that substitutes for booking

What to know without committing.

Opening days and hours for the things you might do, since the most common failure is arriving at something closed.

Whether anything requires advance booking, which is the information you need in order to decide what to book.

Roughly what things cost.

How the local transport works.

And a shortlist of options for each day, which allows a decision in the morning without research.

The over-planning failure modes

Worth naming because they are specific.

Being unable to accept a recommendation from someone you meet, because the day is committed.

Rushing between booked commitments.

Continuing with an activity that is not enjoyable because it was paid for.

And the loss of the unplanned time in which most of what people remember actually happens.

The under-planning failure modes

Equally specific.

Arriving somewhere full, in peak season, and spending the day finding accommodation.

Missing the thing that required booking.

Spending the trip making decisions rather than doing things.

And discovering that the destination is not what you expected because you did not check.

Both failures are avoidable by the same method: book the structure, research the constraints, and leave the days open.

The shared document

A practical arrangement for anyone travelling with others.

One document containing every booking reference, address, time and confirmation, accessible offline to everyone.

This removes the situation where one person holds all the information and the group is dependent on their phone battery.

It also means anyone can answer a question at a desk without hunting through email.