Possible Clues:

• The way to go up and down at alst about in the rocks
• In company (with); over length of
• A picturesque cave as in Lourdes
• Crossing river, reached ornamental cave
• Sounds as if the whole of it has got to surround the capital of Russia
• That great little fellow to get backwards and forwards in the rocks
• Sounds like the whole of the rock to go backwards and forwards at last
• Small cave as at Lourdes
• Attractive natural, or artificial, cave
• Got around the decay with the help of the cave