It's best to cycle up in the morning, as the tower opens at 10 am and then there is a lot of traffic on the road and around the Kogel. Beautiful view of the Wörthersee from Velden to Klagenfurt.
The Kathreinkogel has been inhabited since the 7th millennium BC. There is a Gothic church, a statue of Christopher, the remains of a fortification and a house of archeology
The 671 meter high summit is forested, so you don't get a view from here. But there is a small summit cross, which is nice. This is also the start of the Falkenberg Bike Trails.