The Peligoni, which began as an informal watersports club but has morphed under its current youthful ownership into a Soho House-esque lifestyle club as well, doesn’t have its own accommodation but offers a wide range of local private villas to rent. We opted for Kostas, two simple but charming adjoining cottages, each with two bedrooms and its own small pool, within easy walking distance of the club (a great bonus). Herein lay another ingredient of our successful holiday: each family had privacy and their own space, with Olive happily toddling along the terrace between the two and everyone taking turns to look after her and help her find the two house cats, both of which she named Lily, after the cat next door in London.

Looking back, we agreed that flexibility was the key. We generally lunched and dined together, either at home, at the club or in pretty local tavernas. The Peligoni provided babysitters, though one evening we did the honours while Fergus and Flick had a date night. Though we did much together during the day, we also maintained our independence and, when it suited, each did our own thing. It was a heavenly week, full of fun. The staff at the Peligoni were delightful, as were Kostas and Eleni, the owners of our cottages, and with blue skies every day, we felt grateful for our time together and ready for the winter to come.

Fergus and Flick have already started planning for their next holiday, this time with Flick’s mum; they know exactly what to look for when choosing it. And where. The possibilities suddenly seem limitless. Once again, all that colour and vitality, all those new flavours and mind-expanding cultures. The glorious familiarity of old favourites and the thrill of as yet uncharted adventures.

How to do it: A week’s membership of the Peligoni Club (020 8740 3001; peligoni.com) costs from £210pp, watersports from £105pp and crèche from £455 per child. Kostas Cottages cost from £990 per week. Flights to Zakynthos on EasyJet (easyjet.com) and British Airways from £60 pp one way (britishairways.com). Read Telegraph Travel’s complete guide to the best hotels in Greece.

Fiona’s tips for a perfect multi-gen holiday

1. Engage the group in trip planning. Write down a list of how everyone would like to spend their days and then look for a holiday and a destination that might fit.

2. Flexibility is key. Make sure there’s something for everyone and that family members can do different things at different times if they want. Grandpa may not want to broil on the beach with the others, but also he may not want to sit alone in the villa all day. If he is a keen bird watcher and the location is right, he might spend a morning doing that, or perhaps an afternoon in a museum or an evening studying the stars if the location were in a dark sky site.

3. Activity holidays – sailing, camping, horse riding, canal boating and so on – work well but only if everyone is keen. Resort-based holidays also work well, as do cruises, as long as the resort or cruise comes up to scratch. No escaping on a ship, but for resorts, it’s best to choose one that isn’t just a “bubble” but reflects the area around it, inviting exploration as well as enjoying its on-site activities and luxuries.