Teak on 89 SC- Please Help

[2182]

use a 1" flexible scraper (from the paint section) and tap it in one corner at a time. then gently twist. i would be willing to bet its varnish like the others said. mine was cracked when i went to replace it and i wound up building a custom closable hatch in its place but it came out easy that way. be gentle, that wood has seen a lot of sun and is brittle as can be. if it is like mine, they rabbeted out a huge chunk to turn the corner, thats where it will want to crack...