Octopuses, trilobites and 900 million years of history
Slemmestad is located in the middle of the Oslo field and is a treasure trove for anyone interested in rock and fossils. In the middle of Slemmestad you can see the history of geology from bedrock to volcanic rocks. The "team package" we see here is in the correct order with the oldest at the bottom and the newest at the top. This is especially because elsewhere the layers are folded or worn away.
The giant Oslo field stretches from Langesund in the south to Lake Mjøsa in the north and tells the earth's history through 900 million years. Here you see countless types of rocks, minerals and remains of prehistoric animals. The reason for this is that the entire Oslo field sank several hundred meters into a grave, while the surrounding areas were worn down to the bedrock by ice age, erosion and the ravages of time.
Fossil hunting
The fossils can be seen all over Slemmestad. It's just a matter of knowing what to look for! Learn more at our signposted geology locations. The Geology Center has made guide booklets with maps that supplement the information signs you find along the way. This can be downloaded from the Geology Center or viewed digitally at www.geologisenteret.no
It is first and foremost the exciting geology that exists, but we also recommend taking a trip into the Geology Center's Trilobox to look at exhibitions of the area's fossils, rocks and minerals.
The fossils are from the time periods Cambrian, Ordovician and Silurian, from 540 to 420 million years ago. At that time, Slemmestad's seabed was in a relatively shallow sea. Animals and plants abounded here. Some are similar to those we know today, while others look completely foreign. You will find both graptolites, trilobites and spectacular octopuses.
Slemmestad is facing major changes in the future and will be developed from an industrial site to a vibrant coastal town. This is probably the largest site development project in the inner Oslofjord. Make your visit to Odden. A recreation area where you can swim, fish and eat your packed lunch while enjoying the fantastic view all the way to Oslo.
The coastal path to Vollen
After an exciting fossil hunt in Slemmestad, we recommend that you follow the marked coastal path north towards the idyllic town of Vollen. The coastal path takes you past several blue flag beaches, fossil points and through pleasant buildings and is accessible to all.
Vollen is characterized as the best-preserved beach resort in the inner Oslofjord. Here you will find several nice shops, galleries, restaurants, the Oslofjord Museum, Vollen Marina with activities such as diving and jet skis. Nice beach with frisbee golf and reuse library. There is a fast boat between Aker Brygge / Drøbak and Vollen and Slemmestad.
Access:
The summer boat B22 / B21 from Aker Brygge / Son during the school holidays and weekends during the summer. For timetables check www.ruter.no
Bus to Slemmestad. Disembarkation at Toern. www.ruter.no
Free parking at Slemmestad Commuter parking on Vaterlandsveien.