The mod will add a set of diving equipment, which will increase the speed of movement and breaking blocks, but on land you will become slower and slow.

Simple Diving Gear Mod for Minecraft 1.15.1/1.14.4

You can also make one upgrade for bright coverage of the territory you are exploring. Now you can explore the underwater bottom in Minecraft and find something interesting there.

Download Links:

1.15.1 – SimpleDivingGear_4.0.0mc1.15.1

1.14.4 – SimpleDivingGear_3.0.4mc1.14.4