Hi!
If you are going to summon a lightning in Minecraft, and you can not see the water if you go inside and look at the water.

Easy way to do.

1."/give @p command_block"
2. Put this command in to the command block "/summon minecraft:lightning_bolt ~ ~ ~"
3. Do "Always Active" and "Repeat".
4. Go to the inside the lightnin bolt and see the water.

Thanks.