Does apple care cover water damage to screen

"AppleCare+ for Mac extends your coverage to three years from your AppleCare+ purchase date and adds up to two incidents of accidental damage protection every 12 months, each subject to a service fee of $99 for screen damage or external enclosure damage, or $299 for other damage, plus applicable tax.1 In addition, you’ll get 24/7 priority access to Apple experts by chat or phone."

I believe the above answers your question. Hopefully, you won't cause water damage just because of the warranty. The warranty must be purchased within 60 days from date of purchase of the computer. You cannot purchase the warranty after there has been water damage.