SS Martti Ragnar (1934)

Merdø is an island in Arendal municipality in Agder county, Norway. The 0.3-square-kilometre (74-acre) island lies along the Skagerrak coast, near the entrance to the Galtesundet, the main shipping channel leading to the town of Arendal on the mainland. The islands of Tromøy and Hisøya lie to the north and northwest. The small islands of Ærøya and Havsøya lie to the southwest. A part of the island is included in Raet National Park.

Ærøya is an unpopulated island in Arendal municipality in Agder county, Norway. The 0.12-square-kilometre (30-acre) island lies along the Skaggerak coast about 700 metres (2,300 ft) south of the larger island of Hisøya. The islands of Havsøya and Merdø lie to the northeast, the islands of Store Torungen and Lille Torungen lie to the southeast, and the island of Gjervoldsøy lies to the west.

Revesand is a village in Arendal municipality in Agder county, Norway. The village is located at the southern coast of the island of Tromøy, about 1 kilometre (0.62 mi) north of the island outport of Merdø.

The Capture of Arendal occurred on 9 April 1940 and saw the German torpedo boat Greif land a force of bicycle troops and seize an invasion beachhead at the Norwegian port town of Arendal. The main aim of the landing, part of the German invasion of Norway, was to sever the undersea telegraph cable between Arendal and the United Kingdom. The German force landed unopposed, with the Norwegian torpedo boat based in the town choosing to evacuate rather than take up the fight against the surprising arrival of the Germans. The Norwegian naval commander cited concern for civilian casualties and a glum view of his chances as reasons for not resisting. While the initial German occupation of Arendal took place without serious incident, panic broke out the following day and led to many civilians abandoning the town, following unfounded rumours of an incoming British bomber raid. Five days after the German occupation of Arendal, the town saw the establishment of the first organized resistance group in Norway. The Arendal Group operated from 14 April 1940 until crushed by the Gestapo four months later.

Brattekleiv is a village in Arendal municipality in Agder county, Norway. The village is located along the Galtesundet strait on the southwestern shore of the island of Tromøy. The village lies about 1 kilometre (0.62 mi) southwest of the town of Arendal which is located across the strait. The smaller industrial village of Pusnes lies immediately north of Brattekleiv, the small village of Revesand lies just south of the village, and the village of Færvik lies a short distance to the east.

Færvik Church (Norwegian: Færvik kirke) is a parish church of the Church of Norway in Arendal Municipality in Agder county, Norway. It is located in the village of Færvik on the island of Tromøy. It is one of the churches for the Tromøy parish which is part of the Arendal prosti (deanery) in the Diocese of Agder og Telemark. The white, wooden, neo-gothic church was built in a long church design in 1884 using plans drawn up by the architect Johan Christoff Friedrich Reuter. The church seats about 490 people.

Færvik is a village in Arendal municipality in Agder county, Norway. The village is located on the southwestern part of the island of Tromøy. It sits east of Pusnes and Brattekleiv and north of Revesand. Færvik Church is located just southwest of the village. Færvik was the administrative centre of the old Tromøy municipality from 1878 until 1992.

Hove Farm (Norwegian: Hove gård) is an original undivided farm (matrikkelgård) on the southwest part of the island of Tromøy in the municipality of Arendal in Aust-Agder county, Norway. The farm is located on a headland, with the sea behind it to the southeast and facing Hove Bay (Hovekilen) to the northwest. Hove Bay is a protected marine area, accessible only to small vessels. The islands of Merdø and Gjesøya lies closest to Hove. Until 1942, Hove Farm had a single registration number and a single owner. The farm was purchased by the state in 1942, and was then used by the German occupation forces during the Second World War. Today the farm belongs to the municipality of Arendal.: 64 The farmhouse dates from 1725 and was built after the original structure at the site burned. Below the farm there were one or two cotter's farms in the past, when a tannery operated at the farm in the early 1800s.: 67–68 

Kolbjørnsvik is a village in Arendal municipality in Agder county, Norway. The village is located on the northern part of the island of Hisøya, across the harbour from the town of Arendal. The village of His and the Hisøy Church lie about 2 kilometres (1.2 mi) south of Kolbjørnsvik. The former municipality of Hisøy had its municipal government located in this village. Today, the village is considered to be part of the town of Arendal, so separate population statistics are not kept.

Pusnes is a village in Arendal municipality in Agder county, Norway. The village is located on the southwestern edge of the island of Tromøy, just across the strait from the town of Arendal. There is a ferry that regularly crosses the strait from Pusnes to Arendal. Pusnes is primarily an industrial area.

Hisøy Church (Norwegian: Hisøy kirke) is a parish church of the Church of Norway in Arendal Municipality in Agder county, Norway. It is located in the village of His on the island of Hisøya. It is one of the churches for the Hisøy parish which is part of the Arendal prosti (deanery) in the Diocese of Agder og Telemark. The white, wooden, empire style church was built in a cruciform design in 1849 using plans drawn up by the architect Gustav Adolph Lammers. The church seats about 500 people. From 1881 until 1992 it was the main church for Hisøy municipality.

Hisøya or Hisøy (historically: Hisøen) is an island in Agder county, Norway. The island has been part of the municipality of Arendal since 1992. The main village areas on the island are Kolbjørnsvik, His, Slåbervig, and Sandviga. The village of Kolbjørnsvik is located across the harbor from the town of Arendal. There are two bridges that connect Hisøya to the mainland: the Strøm Bridge on the northwest side of the island and the Vippa Bridge on the southwest side of the island. In 2015, the island was home to about 4,450 people giving it a population density of about 550 inhabitants per square kilometre (1,400/sq mi). The 8.1-square-kilometre (3.1 sq mi) island lies along the Skaggerak coast of southeastern Norway. Hisøya is separated from the mainland to the northwest by the river Nidelv. The island of Tromøya lies to the northeast, separated from Hisøya by the Galtesundet strait. The small islands of Ærøya, Havsøya, and Merdø lie just to the southeast of Hisøya. The highest point on Hisøya is the 99-metre (325 ft) tall hill on the edge of Kolbjørnsvik.