No operator site provides a pre-booking checklist for families. Operators want the deposit confirmed quickly, not a parent asking twenty questions first. This page is that resource.

Use this as a reference when you contact operators. Every section corresponds to a category of questions worth settling before any money changes hands. The items marked specifically: the sunscreen-proof seating, the embarkation time with children, the cancellation window if a child is unwell. These are the ones most families discover only after the day has started.

The questions to ask before you pay a deposit

The boat

Request the vessel name and registration number and verify it on the Greek maritime passenger documentation requirements registry before signing anything.
Ask specifically: are the deck rails enclosed or open rope? For families with children under ten, this is the first structural question. Open rope railings are a different risk profile from enclosed ones.
What is the permanent shade setup on deck? Not “we can rig an awning.” What is built in and available for the whole day without crew intervention.
Ask for the vessel’s passenger licence number to confirm the headcount it is legally authorised to carry. If your group is at the upper end of the capacity, confirm this in writing.

The route

For every proposed stop: does it require tender boarding? What is the procedure with your specific age of youngest child? Ask this for each stop individually, not as a general question.
What is the sea state exposure for the proposed route in your season? Routes through open Aegean to Delos and Rhenia in July and August carry real Meltemi risk. Ask for a named sheltered alternative if the primary route is not accessible on the day.
How many stops does the operator typically cover on a family day? Two to three well-paced stops with real dwell time is the right structure. An operator who defaults to maximum coverage without prompting may not have thought carefully about how families use the day.

Food, drink, and dietary needs

Collect your family’s dietary requirements and any toddler feeding needs before contacting operators. You cannot get a comparable all-in quote without knowing what you actually need, and changes after the quote is received tend to reprice the whole booking. Ask specifically: what food is included by name, is there warming or heating available on board for toddler food, and is the drinking water supply adequate for a full day with children in summer heat. One thing that surprises many families: the amount of drinking water a group with young children goes through on a hot Greek afternoon is considerably more than operators stock for adults. Confirm the supply before you board.

Documentation

Ask the operator what identification is required for all passengers at embarkation. EU and non-EU passengers may have different requirements, and some embarkation ports apply requirements more strictly than others.
Bring original identification for all passengers including children. Copies are frequently not accepted. If your children travel on a separate passport from either parent, have the passport accessible, not packed at the bottom of the bag.
Life jackets in sizes appropriate for your children’s ages and weights should be confirmed before the day. Ask the operator what sizes are on board. If the sizes available don’t fit your youngest child securely, bring your own. This is not an unusual request.

Cancellation, rescheduling, and early departure

Read the cancellation terms in full before signing. The question most families forget to ask: what happens if we need to leave early because a child is unwell or distressed. Is there a reduced refund for time not used, or is the day charged in full regardless? Get this in writing, not as a verbal assurance. Weather rescheduling policy should also be in writing: a named alternative date or a clear refund process, not “we’ll sort it on the day.” The cancellation window for families with young children is a real operational question, not a formality.

What to prepare before the day

Send the group a short message before the day covering four things: the embarkation point and how to reach it, the departure time and what happens if someone is late (operators will not typically wait more than ten to fifteen minutes for a full group on a summer schedule), what to bring in terms of sun protection and appropriate footwear for boarding, and any dietary or medical information the crew needs to know in advance.

Embarkation time with children needs a buffer. If the operator says 9am, treat it as 8:40am for your family. Boarding a private yacht with young children, a pushchair, snacks, sunscreen, and swim gear takes longer than boarding as a couple. An operator who knows your family is arriving with young children should mention this when confirming. If they don’t, mention it yourself and ask whether the embarkation process has any specific logistics for families.

Sun protection for a full day on the water is significantly more demanding than a beach day. Reapplication every two hours is not practical on a boat without shade for the whole deck. Consider UV protective clothing for children, particularly infants. The reflected light off water intensifies exposure beyond what most parents account for from experience on land.

On the day

The crew are your best resource. A crew who have been briefed on your family will be ready to help with boarding, particularly at tender transfer points. If you haven’t briefed the operator in advance, brief the crew as you board: tell them the ages of your children, which child is nervous about water, and what the plan is if someone needs something during the day.

Pace is yours to control on a private charter, but you have to exercise that control. If a stop is working well and the children are happy in the water, say so. The crew will not assume you want to stay unless you tell them. Equally, if something is not working: a child is unsettled, the sun is too much at a particular anchorage. Say that too. The advantage of a private day is that the day can move. Use it.