wˌɛn wˈɛt, ðə klˈeɪ sˈɜːfɪs bɪkˌʌmz ɛksˈɛpʃənəli slˈɪk ænd ˈiːvən fˈoːɹ wˈiːl dɹˈaɪv kæn biː ɹˈɛndɚd jˈuːsləs.
When wet, the clay surface becomes exceptionally slick and even four wheel drive can be rendered useless.