Sakuma started the conversation saying that he and Abe travel together quite often. When they went to Hawai together earlier, Abe-chan's mom asked them to buy a kind of superfood. To buy the superfood, they had to cycle their rental bike through about two mountains. Abe-chan answered that he didn't even know why he decided to go through the trouble.
Sakuma said that in the end, it's a good thing. Abe agreed to the sentiment and added that he feels like he's going on an adventure. Sakuma said that he hasn't ridden the bike for a long time too (so it feels good).
The story then continues with Abe telling the story about Sakuma fell down from the rental bike. It was a kind of a slope, and Sakuma suddenly felt like he dropped his cellphone from his pocket so he suddenly hit the bike brake. When he did that, he fell and rolled on the ground. Sakuma said that him falling down follows a "something" law, which Abe answered that it could the inertia law that he tried to refer to.
After all the hard work obtaining it, the two got back from Hawaii bringing the superfood that according to Abe's Mom to only sold in that certain store in Hawaii. In about three weeks after they arrived back in Tokyo, the superfood is started to be sold in Tokyo, which made Abe questioned their arduous bike journey.
At the very end of the conversation, they talk about how big the supermarket in Hawaii is compared to Japan and how everything is sold in bigger packaging.
Abe and Sakuma went to Hawaii in 2017? I think? And only the two of them went, not the whole group.
With Abe and Sakuma, they are so eager to talk to each other, so the sentences are short! Which is good because I can understand easily... but writing it down is a different thing...