The Stockholm archipelago is one of those places you hear about constantly but somehow never fully prepare for. We’d been to Stockholm before — Joona for work, me for a photography trip — but we’d never taken a single ferry out into the islands. That felt like a mistake we needed to fix. So last summer we bought a five-day island-hopping pass and just went. This is the Stockholm archipelago guide we wish we’d had before we booked.

How the Stockholm archipelago actually works

With more than 30,000 islands, islets, and skerries scattered across 150 kilometres of Baltic Sea east of Stockholm, the archipelago is genuinely enormous. Most visitors see the inner islands from a day-trip boat and call it done. That’s fine, but it’s not the archipelago we want to write about. The further out you go, the fewer people, the cleaner water, and the more honest the experience gets.

Getting out there: the ferry system

Waxholmsbolaget operates archipelago ferries. An SL 72-hour ticket does not cover the entire network: all SL ticket types apply only within the specified Stockholm–Vaxholm area, while tickets valid for at least 30 days cover the wider network during the stated low-season period. Check the current ticket rules and eligible piers for each leg. Stromma’s Cinderellabåtarna has its own bookings and seasonal departures; check its timetable separately.

The inner vs outer split

Think of the archipelago in three rings. The inner islands (under 30 minutes from the city) are mostly residential suburbs with some charm but heavy boat traffic. The middle islands (1–2 hours out) are the sweet spot for first-timers — reachable in half a day, with proper village life and swimming spots. The outer islands (2+ hours) are wilder, less visited, and genuinely remote-feeling. We’d covered the inner ring on previous Stockholm visits and deliberately focused on the middle and outer for this trip.

The 5 Stockholm archipelago islands worth the ferry

We visited more than five. Not all of them made this list. Here are the ones we’d actually go back to.

1. Sandö — the child-friendly middle-ring gem

For Sandö, confirm the exact pier in the operator’s journey planner before choosing a departure or ticket; do not assume an SL ticket covers the crossing. It’s car-free, quiet, and has some of the best sandy beaches in the archipelago (rare — most islands are rocky). There’s a small café near the pier and a network of walking paths through pine forest. We spent three hours here on a Tuesday in July and had an entire stretch of beach to ourselves.

2. Sandhamn — the lively sailing hub

Sandhamn is the archipelago’s most famous village and can feel crowded on summer weekends. We went on a Wednesday and it was perfect — enough people that the restaurants were open, few enough that the narrow lanes were actually walkable. The KSSS sailing club race week happens here every July, which turns the harbour into a festival. Outside race week, it’s a gorgeous village with wooden houses, a bakery, and boat docks. The outer side of the island is rocky coastline with barely a soul on it.

3. Gallö — the secret swimming island

Nobody told us about Gallö. We found it by asking the ferry captain which stop he’d go to on a day off. The answer was Gallö. It’s a tiny stop — you can walk the whole island in two hours — but the swimming is exceptional: warm(ish) Baltic water, smooth granite rocks, and almost zero foot traffic. There is no café, no shop, and unreliable phone signal. Bring food, bring a book, and stay until the last ferry. Perfect.

4. Finås — for the overnight crowd

If you want to actually sleep in the archipelago, Finås has a small STF hostel and a handful of holiday cottages. Staying overnight changes the whole experience — the boat-day tourists leave, the light goes long and golden, and the sound is only wind and water. We stayed one night in a rented stuga and it was one of the better sleeping decisions we’ve made. Book well ahead; summer spots fill up in March.

5. Utö — the furthest and finest

Utö is the southernmost inhabited island in the Stockholm archipelago, about 2.5 hours from the city. It has a real year-round community, a bakery famous across the archipelago, bike rental, and long cycling routes through heathland and forest. It also has the clearest water we found on the whole trip. The ferry crossing from Värmdö is an experience in itself — you pass through progressively emptier and wilder island chains until the mainland feels very far away. Utö deserves a full day, or ideally two nights.

Stockholm archipelago quick reference: the island-hopping cheatsheet

These are the eight things you actually need to know before you book a single ferry ticket.