Arrakis holds many delights for the adventurous vacationer, such as its blinding dust storms, and being crushed by a sandworm.
Depending on the time sector, the Grell is the Keronian name for a solitary member of Keronian sandworm. In each of two known sectors these sandworms exist as either an annelid species or a reptilian species (the latter apparently closer related to the Doug-o-saurus).
- Keronian annelid sandworm (Grell (original version))
- Keronian reptilian sandworm (Grell (new version))
- Arrakis Sandworms