Main Page | See live article | Alphabetical index In Greek mythology, the Planctae ("wandering rocks") were a group of rocks, between which the sea was mercilessly violent. The Argo (led by Jason) was the only ship to navigate them successfully (with divine help from Hera, Thetis and the Nereids). Jason chose to brave the Planctae instead of Scylla and Charybdis. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.