The Orlík Reservoir (Czech: Vodní nádrž Orlík) is the largest hydroelectric dam in the Czech Republic. It dams the Vltava River near the village of Solenice, which is near the town of Příbram. The structure is named after Orlík Castle, which is situated a few kilometers above the dam.
Meeting point for this course is right here. Link for Waze navigation here https://waze.com/ul/hu2f1fr90m
From capital city Prague take the D4 highway in the direction of Pribram to its end where you will take the exit the direction of Jablonna / Solenice. After passing through the village of Solenice you will cross the dam and continue along the water which is now on your right to the point of meeting.