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Superstring theory on with the smallest amount of NS-NS flux (“k= 1”) is shown to be dual to the spacetime CFT given by the large N limit of the free symmetric product orbifold Sym N. To define the worldsheet theory at k= 1, we employ the hybrid formalism in which the AdS 3× S 3 part is described by the WZW model (which is well defined). Unlike the case for k≥ 2, it turns out that the string spectrum at k= 1 does not exhibit the long string continuum, and perfectly matches with the large N limit of the symmetric product. We also demonstrate that the fusion rules of the symmetric orbifold are reproduced from the worldsheet perspective. Our proposal therefore affords a tractable worldsheet description of a tensionless limit in string theory, for which the dual CFT is also explicitly known.