The Gondola Ride at Heavenly is VERY EXPENSIVE ($36 per person), but worth it if you've never done it before. The views are spectacular, especially at the Observation Platform on the way up the mountain. Stay as long as you want and take in the spectacular views of the entire majesty Lake Tahoe and the Sierra Nevada Mountains. At the top of the 15 minute ride up to the Tamarack Lodge at the Heavenly summit (at about 9150 feet elevation), it seemed as though you were at the top of the world. Very enjoyable -- especially on a nice sunny day -- and worth it (once).
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.