Cambridge II. Pub crawl

Do you know what a pub crawl is? My dictionary says:

“pub-crawl [countable]. British English informal. A visit to several pubs, one after the other, during which you have a drink in each pub.”

And crawl means “move along on your hands and knees with your body close to the ground” and the dictionary offer the following illustration:

My friend Ben is from Germany and we went out to the centre of Cambridge this afternoon and we had the first pint at “Eagles”. As it was raining, we couldn’t walking along the streets and we had to shelter from the bad weather. After de afternoon come the evening and after one pint come the next one and we drank the fourth and last one in the “Castle Inn”, finishing a genuine pub crawl.

We had been talking about a lot of things and I asked him about de secret of the German productivity. He explained to me different reasons all of them very reasonables but he finished saying that the productivity decrease in Germany in the summer and he thought it is impossible to reach the German productivity if it is 35 C.