Nixies Vacay Cove Hideaway Playset A hidden lagoon vacation spot with a 3-D deco kit. Playset uses a small amount of water so the Nixie Bella doll can really swim! Bella is a glamorous, dancing mermaid princess! Bella loves to joke and laugh. She's the life of the party! Nixies swim and chill in style! Beautiful, dancing mermaids that really swim!