Sjótækni‘s new survey boat has been used this summer in various projects and has had great results. Most recently, it was used to inspect the condition of the bottom of the harbour, where a considerable traffic of ships and boats is present. Pictures from the boat clearly show where the tires that have fallen off the pier lie at the bottom of the harbour. It is also clear how the current from the propellers of ships and boats begins to flush material at the bottom of the harbour from the steel bulkhead and form an elevation outside the bulkhead, which means decreasing depth at the harbour edge and less support for the steel bulkhead. The usefulness of such images is unequivocal when it comes to estimating the cost and work of repairs to piers and harbours. The pictures show how many tires are on the bottom and therefore it is easy to estimate the cost of diving to clean them up. It is also easy to monitor and assess the depths in the harbours with these images so that the harbours always have the correct information for the ships passing through.