In Tokyo '95 they were held on a similar landfill island in the bay.
At the time I wasn't a DCT fan, and remember seeing the fireworks over the bay and thinking they were a bit early (August is fireworks season).
Later that summer the great Japanese TV video show 'Countdown TV' -- which plays ~20-30sec of the top 50 singles every Saturday night -- started playing the clips of DCT in their funky sky/cloudy suits, and I first noticed DCT's energy on stage.
Here's CDTV's list of DCT appearances in the countdown (from 1995):
http://www.tbs.co.jp/cdtv/artistdb/artist40-j.html
Then in 1998-99 on a lark I picked up the Wonderland '95 VHS and was blown away -- what a seriously impressive concert opening, plus the staging of songs to match the sunset was impressive.
The massive DCT concerts had about 50,000 people, IIRC. In the summer of '99 the j-rock band GLAY had a 200,000-person concert event, and ticket sales only covered half the production cost of ~$25M USD.
http://www.m-messe.co.jp/topics/back_nu ... 0mili.html