Reykjavik for The Three Generations: a Friday-to-Monday weekend

Flat paths round the city pond, benches every few steps and ducks for the youngest; the town hall café is on the edge if anyone needs a sit.

Dinner at six: fish arrives in bubbling pans to share, with butter and potatoes, and the long tables take a table of three generations easily.

A short taxi to the steel ship sculpture on the shore, flat all the way with a few benches, and a view back across the bay at dusk.

A lift runs to the viewing deck and the church below has benches; go in the morning when the queue is shortest, and allow thirty minutes.

One hilltop under a glass dome, with lifts everywhere: glacier exhibition, an ice cave, a planetarium and a viewing deck, and a café with a view.

A plain dinner of lamb soup, fish and burgers for everyone, with big tables and a menu that suits all three generations.

Icelandic Sunday morning: shallow warm pots for the grandparents, a slide for the children, a step-free entrance and changing rooms with benches.

All on one flat level: life-size whale models, an audio guide and a café with a long table; unhurried, indoors and warm.

Dinner at six at the old harbour café, fish soup and plokkfiskur for all ages, with window tables onto the boats and plenty of room.

Step-free entry and lifts to the upper foyers, where the glass facets frame the bay; seats and a café are all on hand.

One flat room with a Viking longhouse under glass, short and interesting for all ages, with touch screens that hold the children's attention.

A relaxed lunch at the food hall, step-free with plenty of tables and stalls for soup, fish and pizza, a short ride from the Flybus stop.