Water visibility is around 5 blocks in all directions with water being oversaturated with the texture pack's water color. (The city texture being sky blue water). New worlds have very clear water while using texture packs. This is an Update Aquatic bug.
Cleaning up old tickets: This ticket has not been updated recently (~1 year+) so is being closed as Cannot Reproduce. If you feel this is still a valid issue then please comment, or create a new ticket following the Issue Guidelines.
Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki