It wasn't always infested with Lizardons, some screenshots of when they first arrived:

http://www.graalonline.com/community/g-files/Classic//lizattack.png (Unsupported image host)

http://www.graalonline.com/community/g-files/Classic//lizattack2.png (Unsupported image host)

http://www.graalonline.com/community/g-files/Classic//lizattack3.png (Unsupported image host)