Central Bohemian Mountains - volcano-like cones, lava rock and basalt mantles

Mountains around Litoměřice with a volcanic past, bizarre geology, volcano-like cones and lava and basalt mantles – this is the Central Bohemian Mountains (České středohoří), a mountain range that evokes a feeling in many that they have stepped back in time to when the planet was just being formed.
We will be walking up and down for terrific views -- to Varhošť (638m) and Lysá Hora (577m) -- before ending up in the town of Litoměřice (if somebody wants to explore the town, there is also a later train that day)

TRANSPORTATION : We will take the 09:25 train from Praha Hlavní nádraží (Main Train Station) to Ústí nad Labem. We will buy the tickets before the trip. If anyone wants to buy the tickets in advance, I will add the link later.

From this station we will take a local minibus to a near-by village, a 20-minute drive (around 100-150 czk per person)

IMPORTANT ! Part of the tour is operated by local minibus. I need to know the number of attendees by Saturday at 1 pm.

The basics :

DISTANCE : The walk is planned for 13,5km/4:30 hours
↑497m | 750m↓
FITNESS FACTOR: 3,5/5
CONTRIBUTION: 200 czk - (food* and transportation not included)

The expected return to Prague is at 18:32.

*NOTE: For this hike, you'll want to pack your own lunch and drink. It's probable we won't encounter a good place to eat along the way.