You may be looking for the Val Jean, also known as the Selva.

Selva was a lush colony world and home to the colony of New Reykjavik during the late 2360s.

There was a presence of a group of feral Klingon children on the planet, and conflicts arose between them and the colonists. In 2368, the USS Enterprise-D visited the planet and Lieutenant Worf led a small landing party that included Ensign Ro Laren to investigate and resolve the growing tensions. (TNG novel: War Drums)

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