The easternmost outpost of Sweden since 1809 when Finland was lost to Russia. Haparanda have always been an important trading post, this continues until this day with the northenmost IKEA warehouse in the world, bringing customers from all across the Barents region. It is a great gateway to the wild north of Scandinavia. Most people here speak both Swedish, Finnish and English.
Arriving by car is easy since Haparanda is on the E4 with roads in good shape. It is a border town so there is a fair share of heavy duty traffic coming through.
Altough Haparanda boasts a train station, there is no passenger service. Tornio across the river has a daily train coming from Helsinki but otherwise your best bet is Kemi with quite frequent connections from all parts of Finland. Two daily Swedish night trains, one from Stockholm and one from Gothenburg terminate in Luleå with a connecting express bus to Haparanda waiting.
VR  has a night train from Helsinki to Kolari, which stops at Tornio, the station is named Tornio- Itäinen.
More trains stop at Kemi, 30 km away from Haparanda. From there you'll have to continue with the bus service provided by Matkahuolto .
Express coaches from Sweden are handled by Länstrafiken Norrbotten , there are daily connections to cities as Kiruna, Luleå and Umeå while some buses continue all the way to Stockholm. Resrobot  finds the best public transport routes.
To Finland, frequent bus connections with Matkahuolto  connects Haparanda to Tornio and Kemi, but some lines extend even to bus station in Oulu. Beware that all buses going to Finland depart according to local Finnish time, which is one hour ahead of time in Haparanda.
Haparanda has no airport, the nearest one being in Kemi  (24km) on the Finnish side, where there's scheduled flights to Helsinki. From there you have to continue with the bus service provided by Matkahuolto , the nearest bus stop of Kemi airport is named Kemi lentoasema th.
Ringlinjen connects most part of Haparanda and Tornio, fares are 15 SEK or €2 for a single trip.
Both Swedish krona and Euro are accepted in most stores. Rajalla På Gränsen , just across the border in Tornio is the major shopping mall in the area.
The resturant in Cape East (se Sleep section) is by far the best in town and also the most expensive. The other hotel, Stadshotellet also have it's own resturant. There are several cheap resturants scatterd in the city center, some serve only lunch. For cheap crub, head out the in-store IKEA resturant.