A California hotel is offering a unique exercise class designed to build core strength -- "Mermaid Fitness" sessions in the hotel pool.

ADVERTISEMENT
The Hotel Del Coronado in San Diego is offering Mermaid Fitness classes on Fridays and Saturdays in the accommodation's Beach Village pool.

The $25 price for each class includes rental of a mermaid tail -- participants who buy their own tails pay only $10 per class -- and a 45-minute mermaid swimming session.

The hotel describes the class as a "fusion of swimming, core, cardio and strength training set to upbeat music."