2 places ranked

Working from
shodoshima

Ranked by the broadband measured at each address, worst-metric first, so the ones you can take a call from are at the top.

2 of the 2 listed here are call-ready.

Ranked

Hotel	#	Verdict	Down	Up	Ping	Tests
Taihama Beach and Camping Site	1	Call-ready	758.7	258.2	12	2
吉田キャンプ場	2	Call-ready	454.6	397.2	16	1

Upload is emphasised because it decides whether your video call holds, and it is the column no hotel will tell you.