For each wave buoy we keep two record sets: an hour record and the long-range 6 hourly one.

Wave buoys nearest to Castles:
1.	Naha Port	last 18 hours, hourly	last 5 days, each 6hr	13 mi
2.	Nakagusuku Bay Port	last 18 hours, hourly	last 5 days, each 6hr	21 mi
3.	Hirara Port	last 18 hours, hourly	last 5 days, each 6hr	173 mi
4.	Naze Port	last 18 hours, hourly	last 5 days, each 6hr	200 mi
5.	Ishigaki Port	last 18 hours, hourly	last 5 days, each 6hr	253 mi