I went to the SAKURA LOUNGE in Sapporo New Chitose airport(CTS).
The lounge is right after going through the security check.
The entrance is like this :
Unfortunately there is no kids space here.
However a “kids toilet” is in the lounge.
There are 4 types of beer.
I took a video of the lounge :
How to connect to Wi-Fi
You can select ‘jal’ SSID.
No password is needed.
Then click(tap) “START”.
After reading the terms and conditions, ticking 「同意する」(“agree” in Japanese) and click(tap) 「次へ」(“next” in Japanese).
Fill in your email address.
Click(tap) 「同意する」(“agree” in Japanese), then it’ll be connected.
Uploading : 14.06Mbps
Downloading : 10.01Mbps
I was able to use it without stress.
As I am currently a British Airways(BA) Gold membership, I will visit the Diamond Premier lounge next time.