We recommend that you go after this cache in the summertime, when the "weather is easy”. And be careful!
The Raseborg castle ruins, situated on a rock by the river Raseborg, are the remainders of a castle that was probably built in the 14th century, when the rock was still surrounded by water. Raseborg is officially mentioned for the first time in a letter dated 1378. It is a typical medieval castle of a simpler kind that has been constructed during a long time period. There is no other similar castle in Finland.