Some say this was God’s grace giving ample time for any that would change their mind, put on faith, and step into the ark.
Putting Noah’s Ark in perspective, the length would be about one and a half football fields.
Understand that sin destroys. God, knowing this, provided a way out.
Just like God spoke to Noah and gave Him a specific blueprint, He will give one to you. He will always provide you with a way out.