- The Grundsund area contains fortifications, which are located closest to the Soviet rental area of Hanko, than in any other area of Harparskog-line. If you start walking from the structures 410, a & b, and 41, b, towards the eastern part of the area, this closeness of enemy becomes quite clear.

- The closer you get to the structures 412 and 413, the more heavily reinforced the structures start to be. Also there is constantly more and more defensive positions and finally the shoreline which is facing towards the once Russian held islands of Bengtsår Prästön and Gråön is full of defensive positions. Also ordinary dugouts and positions dug into the soil hasn't been enough, but most of the positions are mined into a solid rock.

- The area definitely has not been a nice place to be stationed at during the existence of Hanko Front. The enemy has been so close that you could have even almost thrown a rock to their island. The Bromarv section to which this area belonged to during the encirclement of Hanko, suffered the heaviest casualties from all of the different sections. This is partly explained by the many heavy islands battles in the area, but one explanation is also this closeness of enemy. The fortification work also has been continuing even during the war time, as so much has been mined to the areas where not much was done before the hostilities started in June 1941.

- There's plenty to see in this area, but if you are in a hurry I would suggest that you at least take a look at the structures 411 and 410, a & b, which are located at the tip of the peninsula which faces the island of Prästön. Nearby is also a large quarry from where the Hangö Granit mined stones during the years 1886 to 1940 when it was forced to evacuate from Hanko. It is a massive quarry and you surely cannot miss it and the chock of stones, which stretches to the sea, forming almost a bridge to the island of Prästön.

- Otherwise I suggest that you take something to eat and drink and walk through the whole line here. I think it gives an interesting insight to many of the areas and how those might have looked, if there would have been more money and time to construct the Harparskog-line. You can leave your car near of the structure 411 and after the structure 410, a & b, start to follow the road. The gun position 41, a, is located on a tall hill right next to the main road in the area. After this position you can start to follow the shoreline, which offers nice views to the sea and towards Hanko Cape itself. There isn't too may houses in the area, so you can walk rather freely. No use of trying to use the car, as the road is blocked before the area where structure 41 is supposed to be located. The northern route to the area is also useless, as the road there is a private road. During the autumn, winter and spring the road also isn't passable to an ordinary car.

- You can eat your sandwiches near of the gun position 71 and admire the view to Hanko Cape. If you close your eyes, you can still hear the sounds of artillery guns firing from the Bromarv area, while the men are sweating, cursing and constructing these monuments of war, which are now left for us to be taken care of and to remembered for. 

- My own personal notes below are based on the situation in the defensive line, during the years 2005 and 2006.