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The line in the brochure says "full water-toy fleet included." The yacht arrives at the swim stop, the swim platform comes down, and the deckhand unloads two paddleboards, four snorkel sets, a towable banana, and a foam noodle bin. That is the full water-toy fleet on a €3,500-a-day yacht in Mykonos in 2026. It is enough for some guests and far short for others. This post sorts the water-toy reality by yacht price band, names the four items that are almost always billed separately, and explains which items get used and which sit on the swim platform untouched all day.
What "water toys" actually means at each price band
A €1,500 day-charter yacht in Croatia (12m to 15m motor, captain only or captain plus one deckhand) typically carries: two paddleboards, two snorkel sets, four masks, four pairs of fins, a few foam pool noodles, sometimes a small towable. That is the inventory. Nothing on the upper end.
A €3,500 day-charter yacht (20m to 24m, captain plus stew plus deckhand) typically adds: four paddleboards, six to eight snorkel sets, one or two towables (banana, donut, or a flying-fish ride), a small inflatable swim platform or floating pad, sometimes a kayak. Still nothing motorised.
A €6,000 day-charter yacht (25m to 30m, four to six crew) adds the motorised options: one Seabob (or two), an inflatable trampoline ("aqua park"), an inflatable slide on the side or transom of the yacht, sometimes a wakeboard package with the tender. Jet skis are at the operator's discretion and almost always billed separately.
A €12,000+ day-charter yacht (35m+, six to nine crew) has the full inventory: two to four Seabobs, two to three jet skis, eFoil(s), wakeboard and water-ski packages, full inflatable park (slide, trampoline, climbing wall, runway), kite-surf or wing-foil rig if the captain has the certification, a Williams or Castoldi tender that doubles as a tow boat. This is the yacht where "we have everything" is roughly true. It is also the yacht where most of the inventory sits unused all day.
The four items operators almost always bill separately
Regardless of yacht price band, these four items tend to come with a separate line on the invoice.
Jet skis. The fuel is metered. A Yamaha FX Cruiser burns roughly 18 to 22 litres an hour at touring pace and 30+ at full throttle. At European fuel prices of €1.80 to €2.30 a litre delivered to a yacht, that is €40 to €80 an hour just in fuel. Most operators add a usage fee of €100 to €200 a session on top. In Mykonos, Ibiza, Saint-Tropez, and most Italian destinations, the jet ski can only be operated by a guest with a national jet-ski licence (the Italian patente nautica, the French permis côtier, the Spanish PER), and the operator's insurance excludes unlicensed riders. The deckhand will check the licence before unlocking the key.
eFoil. The hire of an eFoil from a third-party shop is €150 to €250 an hour ashore. On a yacht, the rate is similar or higher. The eFoil battery lasts roughly 60 to 90 minutes per pack and the yacht carries two to four packs. Use is capped accordingly. Many operators add a damage waiver, because eFoils on a swim stop with mixed-skill riders are a known source of expensive prop strikes and battery write-offs.
Helicopter and seaplane rides. Treated as water toys by some operators. Not actually water toys. Helicopter transfers from a yacht (touch-and-go pad) or short scenic flights run €4,000 to €12,000 an hour. Always separate.
Tow sports fuel. Wakeboarding, water-skiing, towed inflatables, and tubing are nominally included on yachts of €4,000 a day or more, but the fuel for the tender doing the towing is metered. On a 7m tender pulling a wakeboarder for an hour, the burn is 30 to 50 litres. Some operators include the first hour and bill the rest.
What actually gets used
After 200+ day charters of post-trip debriefs we have seen, the use pattern is consistent. Snorkel gear and a swim platform are used by everyone. Paddleboards are used by roughly half of guests, mostly in the morning or late afternoon. Towables (banana, donut) get a hard 20 to 30 minutes from a children-and-young-adult set and then sit. Inflatable trampolines and slides are used heavily by children up to early teens and rarely by adults. Seabobs are used by a single guest for 45 to 60 minutes total, often with a queue, then sit on the swim platform. Jet skis get heavy use when they are on offer and the licence is in order, often two to four hours a day across the party. eFoils get a token 20-minute slot per guest. Kayaks are almost never used on day charters because the swim stop is short and the kayak is a long-distance product.
The headline insight: at the €3,500 to €6,000 yacht-rate band, the inflatable park and the Seabob are status items. They look fantastic in the photos. They do not get used by adults in proportion to their cost. If your day is mostly adults and the priority is swimming, eating, and conversation, the €6,000 yacht with a Seabob is a worse use of money than a €4,000 yacht with no Seabob and €2,000 of food and bar upgrades. We have made this trade and we recommend it.
The reverse is true for groups with children aged 6 to 14. The inflatable park and the towables are the day. The €6,000 yacht is the right price band.
The age and weight rules
Most water toys carry a manufacturer-set age and weight limit that the deckhand will enforce strictly because the operator's insurance carrier audits this. Common limits.
Seabob: minimum age 14 with a guardian, 18 unsupervised. Weight limit usually 110kg.
Jet ski: minimum age 14 to 18 depending on flag and supervised vs unsupervised. EU-licensed adults only as primary operators. Passenger limit usually 1 adult plus 1 child or 2 adults depending on yacht size.
eFoil: minimum age usually 16 with a guardian, 18 unsupervised. Strict swimming-ability requirement.
Inflatable trampoline and slide: usually 6 to 16 with adult supervision, height limit 1.4m or 1.5m on some items.
Towables: usually 8+ with a guardian, no weight limit but a swimming-ability requirement.
Ask the operator for the age and weight rules at booking, because the worst version of this is arriving with a 12-year-old expecting a Seabob session and being told no.
What does not make the cut
The "jet ski included" claim from operators below €5,000 a day. We have seen this in Cabo, Cancún, Mykonos, and Phuket. The yacht arrives with the jet ski on the davit. The fuel is metered. The "included" is the storage and the launch, not the burn. The client uses the jet ski for two hours and finds €280 on the invoice. The line item is real. The "included" claim was not. Ask the operator for the included-versus-billed list in writing before booking.
The other thing we would pass on is the operator who promises an eFoil at the €3,500 yacht price band. eFoils are €15,000 to €20,000 capital items and need a trained deckhand. If they are offered at low yacht-rate bands, they are usually entry-level units, often without backup batteries, and the offer falls through on the day with a "battery is being serviced" line. If eFoils matter to your day, book on a yacht that owns and operates two of them as a matter of course.
How to brief the operator
Send three pieces of information at booking. The age range of the party, including children. The water-sport experience level (none, beginner, intermediate, advanced) and the specific items of interest. Whether anyone in the party holds a jet-ski licence. Then ask for the included-versus-billed list and the fuel pass-through structure in writing.
For a family day with children, ask specifically about the inflatable park, towables, and the supervision protocol. For an adult group, ask about Seabob availability, jet-ski fuel rate, and tow-sports fuel pass-through. For a mixed group, ask about everything and then trim. The deckhand will set up only what you actually want, and the time saved at the swim stop is real.