Gränna is a small town on the E4, squeezed between Lake Vättern and a steep ridge, with peppermint candy, a polar museum, a palace ruin above the lake and the ferry to Visingsö. Here is how to do it without the usual mistakes.
When you need this
You’re driving the E4 between Stockholm and southern Sweden and want a break that is more than a gas station. You’re staying in Jönköping and have a free afternoon. Or you’re weighing whether to take the car across to Visingsö, and want to know whether you have to book. This page covers the town itself; the city, the island and the lake have more depth in our Jönköping and Lake Vättern guide.
Getting to Gränna
Gränna lies on the east shore of Vättern, about 40 km north of Jönköping, and has been part of Jönköping municipality since 1971. The Gränna district had 4,185 residents at the end of 2025. From Stockholm it is about 292 km, some 3 h 30 min on the E4, which runs along the ridge above the town.
Without a car, take a JLT regional bus from Jönköping. In JLT’s 2025–26 timetable, which ran until 14 June 2026, bus 121 went from Jönköping Resecentrum via Huskvarna to Gränna hamn, the harbour, in about an hour, roughly every 30 minutes on weekday mornings. We could not read the current timetable, so check the JLT app or Resrobot, the national journey planner, before you go.
Two payment rules to know:
- No cash on board. JLT sells single and 24-hour tickets on the bus, paid by bank card or a JLT customer account (kundkassa).
- Children ride free with you. Within Jönköping County, an adult or senior ticket takes up to four children aged 0–11 free.
The polkagris town
Municipal pages call Gränna polkagrisstaden, the polkagris town. Polkagris is a peppermint candy of sugar, water and vinegar, part colored red and the rest pulled white, usually sold as a striped stick.
The story is well documented, but not quite the version you’ll read everywhere. On 10 January 1859 the town’s magistrate gave the widow Amalia Eriksson permission to make “so-called polkagrisar”. She was the first to make them for sale, and that document is the first record of the name. Whether she invented the sweet is unclear, according to the Swedish women’s biographical dictionary. She developed the stick, at first only for weekends and holidays; other Gränna bakers followed, her daughter Ida carried on until 1945, and a bronze statue of her went up in the town in 1997.
Several bakeries in town pull polkagris where you can watch. If you want the real thing, read the label:
| Label | What it means |
|---|---|
| Äkta Gränna Polkagrisar | EU protected geographical indication: at least one production stage in the Gränna area |
| Polkagris alone | Not protected; peppermint rock made anywhere can use the word |
Our Swedish candy guide puts polkagris next to the salty licorice and pick-and-mix, and covers taking sweets home.
The town itself dates from 1652, when Count Per Brahe the Younger granted privileges to “Brahe-Grenna” and laid out the square, Gränna torg. His bust there was unveiled on Midsummer’s Eve 1916. Gränna is also known for fruit growing.
Grenna Museum and the Andrée expedition
Grenna Museum, at Brahegatan 38–40, holds the Polar Center. It is built around the Andrée expedition: on 11 July 1897 the balloon Örnen (the Eagle) left Spitsbergen with S. A. Andrée, Nils Strindberg and Knut Frænkel to fly over the North Pole. The flight ended on 14 July, and none of the three survived. Jönköpings läns museum, the county museum, holds the Andrée collection in trust.
The exhibition spans two floors linked by stairs and a lift. There is a step-free entrance from Bergsgatan via the lift, and an accessible toilet.
Mind the season. From September to April the museum is closed on Mondays and opens at 12:00 on weekends. In May it is open daily 10:00–16:00, and from June to August daily 10:00–17:00.
Brahehus and the view
The ruin above the town is not in Gränna. Brahehus is the ruin of Per Brahe the Younger’s pleasure palace on the ridge above Vättern, begun in 1638 and finished in 1651. It was never lived in and was gutted by fire in 1708. The county museum calls it one of Sweden’s most-visited ancient monuments.
To get there, drive the E4 northbound out of Gränna and turn off at the Brahehus rest area (rastplats); a footpath leads under the road to the ruin. It is not on Visingsö, whatever some travel pages say.
The ridge itself belongs to Östra Vätterbranterna, the eastern Vättern escarpment. UNESCO made it a biosphere area in the summer of 2012; it runs from Tenhult in the south to Omberg in Östergötland, and is known for its broadleaf trees such as oak, ash, elm and linden.
The ferry to Visingsö
Visingsö, the island in the lake, is about 30 minutes away across 6,200 m of water. The ferry route, Visingsöleden, is one of only two paid road ferries in Sweden; almost every other yellow Trafikverket ferry is free. Jönköping municipality sets the fares and sells the tickets.
| You travel | What to do |
|---|---|
| By car | Book vehicle space online or at the harbour office at least 30 minutes before departure (20 minutes in the low season); be at the ferry 5 minutes before |
| With bikes on the roof, or over 2 m | Book as a high vehicle |
| Without a booking, by car | Queue on standby in lane 7; no guarantee of a place |
| On foot or by bike | You cannot reserve; buy a day ticket for your date and queue |
Everyone pays before boarding. Online sales take debit or credit cards; cash in kronor works only at the Gränna harbour office, open Monday–Friday 08:00–17:00 and weekends 08:00–15:00.
The municipality’s own advice is to leave the car in Gränna, where the harbour has ample parking, toilets and an indoor waiting room. In summer, cross in the morning, before the queues build. On the island, JLT bus 126 runs a loop, and you’ll find the Visingsborg castle ruin just north of the harbour and Sweden’s largest oak forest, planted in 1830 to supply oak for the navy. Trafikverket sends free text alerts about disruptions. Our road ferries guide covers the free routes.
Swimming, fishing and the lake
Gränna strandbad, the town beach next to the harbour and campsite, has sand, grass, a bathing jetty outside the rocks, a grill area, a playground, WC and showers, and several hundred parking spaces 100 m away. The municipality describes the ground as hilly for wheelchair users. It tests the water from 1 June to 31 August; the last 2026 sample, on 3 August, was rated fit for bathing. It also warns of a risk of swimmer’s itch (badklåda) from bird parasites, higher in hot weather: unpleasant, not dangerous.
Vättern is Sweden’s second-largest lake, about 135 km long, and anyone may fish it with rod and line from shore or boat without a permit, foreign visitors included. Grayling (harr) is off-limits in the whole lake all year. See free fishing in Sweden.
If you paddle, take the lake seriously: its weather can go from near-calm to a gale very quickly. Watch the forecast, wear a life jacket and head for shore early. In an emergency call 112; the Sea Rescue Society has a station on Visingsö.
Mistakes to avoid
- Looking for Brahehus in town or on Visingsö. It is on the ridge by the E4.
- Driving to the harbour in July without a ticket. You may wait through several departures.
- Paying cash on the bus. Bring a bank card.
- Assuming any striped stick is a Gränna product. Look for the protected name.
- Arriving at the museum at 10:00 on an autumn weekend. It opens at 12:00.
Practical information
| Item | Detail |
|---|---|
| Location | East shore of Lake Vättern, about 40 km north of Jönköping |
| By car | E4; Stockholm about 292 km, 3 h 30 min |
| By bus | JLT 121 from Jönköping (2025–26 timetable); card only on board |
| Grenna Museum | Adult 80 kr, student or senior 60 kr, child 7–15 20 kr, family 180 kr (checked 2026-09-25) |
| Museum hours | Sep–Apr Tue–Fri 10–16, Sat–Sun 12–16, closed Mon; May daily 10–16; Jun–Aug daily 10–17 |
| Brahehus | E4 northbound, Brahehus rest area; no fee stated |
| Visingsö ferry | Paid; cars book 30 min ahead; bike add-on 10 kr (checked 2026-09-25) |
| Harbour office | Mon–Fri 08–17, Sat–Sun 08–15 |
| Gränna strandbad | Free; water tested 1 June–31 August |
| Fishing in Vättern | Free with hand tackle; no grayling |
FAQ
Where is Gränna?
Gränna is a small town on the east shore of Lake Vättern, about 40 km north of Jönköping, part of Jönköping municipality since 1971. It lies below the E4, between the lake and a steep ridge, about 292 km or 3 h 30 min by car from Stockholm. Ferries to the island of Visingsö leave from its harbour.
Why is Gränna famous for polkagris?
On 10 January 1859 the town’s magistrate gave the widow Amalia Eriksson permission to make “so-called polkagrisar”, and she was the first to make the peppermint candy for sale. Other bakers followed, and Gränna became the polkagris town. Whether she invented the sweet is unclear. Äkta Gränna Polkagrisar is an EU protected geographical indication.
What does Grenna Museum cost, and when is it open?
Adults pay 80 kronor, students and seniors 60, children 7–15 20, and a family 180. From September to April it opens Tuesday–Friday 10:00–16:00 and weekends 12:00–16:00, closed Mondays; in May daily 10:00–16:00; and in June–August daily 10:00–17:00. Its Polar Center covers the 1897 Andrée balloon expedition.
Where is Brahehus?
Brahehus is on the ridge above Lake Vättern, just off the E4 north of Gränna, not in the town and not on Visingsö. Drive the E4 northbound out of Gränna, turn off at the Brahehus rest area and follow the footpath under the road. The palace was finished in 1651, never lived in, and burned in 1708.
Do I need to book the ferry from Gränna to Visingsö?
With a car, yes: book vehicle space online or at the Gränna harbour office at least 30 minutes before departure, and pay before boarding. Unbooked cars can queue on standby in lane 7 with no guarantee. Foot passengers and cyclists cannot reserve but buy a day ticket first. The crossing takes about 30 minutes.
How do I get to Gränna without a car?
By JLT regional bus from Jönköping. In the 2025–26 timetable, bus 121 ran from Jönköping Resecentrum via Huskvarna to Gränna hamn in about an hour, roughly every 30 minutes on weekday mornings. Check the current timetable in the JLT app or Resrobot, and pay by bank card, since the buses take no cash on board.
Can I swim at Gränna?
Yes. Gränna strandbad, next to the harbour, has a sandy beach, a bathing jetty, WC and showers. The municipality tests the water from June to August; the 3 August 2026 sample was fit for bathing. It warns of a risk of swimmer’s itch from bird parasites in hot weather, which is unpleasant but not dangerous.
Related guides
- Jönköping and Lake Vättern — the city, Visingsö and the lake in depth.
- Swedish candy — polkagris among the other Swedish sweets.
- Road ferries in Sweden — the free routes and the two paid exceptions.
- Sweden campervan route — a two-week loop with a night in Gränna; for the region, see Småland.
- Ystad, Vaxholm and Marstrand — more small Swedish towns.
Facts verified 2026-09-25. Sources: Jönköpings kommun, Grenna Museum, Jönköpings läns museum, Trafikverket, Jönköpings Länstrafik, Statens fastighetsverk, Livsmedelsverket, Tekniska museet, Svenskt kvinnobiografiskt lexikon, Länsstyrelsen Jönköping, SMHI, Vätternvårdsförbundet and Sveriges riksdag (Fiskelag) — full register in this topic’s source file. Museum hours and prices are 2026 figures. Found something outdated? Tell us and we’ll fix it.