Dolphins perfect for underwater scenes. This asset is very simple to use, simply drag the prefab to the stage. Commented inspector editor will assist in achieving the desired result.
Features
• Drag & Drop Fish School
• Gizmos that shows roaming area
• Simple UV map, easy to change texture
• Easily customize amount, size and speed
• 640 tris animated model
• 2048x2048px texture/normal resolution
• Easy custom models
• Includes Bubbles and Demo Scene
• Obstacle Avoidance
• Distance Disable Script
• C# Scripts
• Custom Rim Lit Shaders
Original_Link: https://assetstore.unity.com/packages/3d/characters/animals/mammals/dolphins-26937