Isekai Yurutto Survival Seikatsu ~Gakkou no Minna to Isekai no Mujintou ni Tenishitakedo Ore Dake Rakushou desu~ - Vol. 3 Ch. 16

[MangaDex]

 

[Kaarme]

How exactly is a boat a risk? Unless he expects the other island to have inhabitants already, and those folks would kill any intruders. Sooner or later Byakuya, an armed yakuza scion, will attack anyway, so even if the other island was an unwelcoming place, Hokage would need to judge which one is the smaller risk, considering he's adamant about not fighting back.

 

[MerlinD]

The group is slowly building up

 

[Arin-san]

Alright, series has officially been ruined. Paii paii guys

 

[Otherworlder]

Hill Hates, really? When Gil Bates is just sitting right there.

How exactly is a boat a risk?

Maybe because now that the sharks know that there's food in the boats, then if he takes a boat to the other island a shark might follow him back, sneak up on all of them when they're sleeping in the cave, and steal all of their food.

 

[Kuyu]

Swimming across? Great idea! There's only sharks in the water, possible wave formations, possibilities of getting cramps along the way, and of course, just your friendly local tigers and beasts that might be possible in the other island. Oh. Let's not forget possible cannibal natives.

 

[thedinowarrior]

NOOO DEATH FLAG, muscle guy is cool tho and i like afro dudes design

 

[Shiirooooooooo]

you know.. I dont think a thriathletes whatever Swim across the sea without any saveline. but since I already numb my mind to read this manga just go for it swimmer san! we believe in youu

 

[BadHaremSchollar]

you know.. I dont think a thriathletes whatever Swim across the sea without any saveline. but since I already numb my mind to read this manga just go for it swimmer san! we believe in youu

While thriathletes do have the custom of swimming long distances, even much longer than the distance to the other island.

No reason to not go there by boat.

 

[Axccel]

Attacking someone unprovoked, especially after he established peaceful contact, is not a good way to show you're not a threat. Rather, at the very least it shows you're too reckless and thoughtless to be trusted.

That said, I do understand that she didn't realize there was at least one other group out there.

 

[Gerbold]

The harem and echi all nice, but the survival aspect is kinda atrocious.
From magical stone shovels, blankets, magic instant pottery and the general attitudes of everyone after a few days.