Golden Circle Iceland Tours

Yes. Popular combos sell out days ahead in summer and over Christmas and New Year. Book 3–5 days early from June to August, and 24–48 hours ahead the rest of the year.

Most tours here give a full refund up to 24 hours before departure. A few minimum-numbers tours can be moved or refunded if too few people book — those cards say so.

Coaches seat 40–100 and cost less; small-group minibuses cap at 17–24, wait less at each stop and let you hear the guide. The price roughly doubles for the smaller format.

Yes. Most operators collect from the Skarfabakki cruise port or a nearby stop, and you'll usually give your ship name and docking times when you book.

The cheapest full-route coach starts at $84. Small-group and lagoon combos run about $130–260, and a private SUV is $820. Prices here are per person unless marked per group.

Þingvellir, the Geysir area and Gullfoss are free to enter, so coach tours don't charge extra for them. The Kerið crater has a small fee, and lagoon or Sky Lagoon entry is only included when the tour says so.

Usually not. Most tours stop where you can buy food — at Friðheimar, the Geysir centre or Gullfoss — but the meal isn't in the price. Where a card mentions a lunch stop, you pay for it there.

On most Blue Lagoon tours the Comfort ticket is included. One option — the transfers tour — includes the ride but not entry, so you book that yourself, around $100, for a set time.

Full-route day tours run 6.5–11 hours depending on the stops; lagoon and northern-lights combos reach 12–14 hours. The classic coach is the shortest complete loop at 6.5 hours.

The loop covers about 250 km and takes just under four hours of driving in total, which is why it works as a single day trip rather than an overnight.

A swimsuit and towel for any lagoon stop (towel rental often costs extra), waterproof shoes, and warm, wind- and rain-proof layers year-round. Iceland's weather turns fast, even in summer.

A few coaches are; most minibus and combo tours are not, and each card notes it. If access matters, the classic coach and the northern-lights coach are the better bets.

Þingvellir National Park, where the Althíng met from 930 AD and the tectonic plates pull apart; the Geysir area, where Strokkur erupts every few minutes; and Gullfoss, a two-tier waterfall on the glacial Hvítá river.

A roughly 3,000-year-old volcanic crater with a blue-green lake at the bottom, ringed by red rock. Many tours add it as a fourth stop; it carries a small entry fee that coach tours usually cover.

Only on the evening combo tours, and roughly from September to April. The aurora is natural and no operator can guarantee it — clear, dark skies are what make the difference.