Water is not visible when looking through alfheim portal - http://imgur.com/a/hsy1f

The particles on runic altar when passing over a manapool makes the manapool see through. But I could not recreate this for screenshots at the moment.

Edit: Pack - FTB Inifnity Evolved v2.1.3 (Expert Mode)
Botania Version: 1.7 (233)

This is a bug in vanilla, nothing we can do about it.

#822