AmaWaterways has added two more ships to its growing fleet of river cruisers.

The AmaReina, which set sale in March, is cruising the Rhine River between Amsterdam and Zurich, while the AmaSonata will depart this month for stops along the Danube River.

The Calabasas company did not disclose the cost of the ships, but others in the industry estimate the price tag on ships of similar size to be about $30 million.

The 164-passenger ships feature staterooms up to 300 square feet with balconies, as well as multiple dining venues, a heated pool, fitness room and onboard salon and massage services. The AmaReina was christened in Vilshofen, Germany last week, while the AmaSonata is scheduled to be christened July 22.

“Both are absolutely beautiful,” said Kristin Karst, executive vice president and co-owner of AmaWaterways. “The christening of the AmaReina was a huge success and I look forward to the ceremony for the AmaSonata.”

Next year, AmaWaterways will add two more vessels to its fleet of 19 ships that ferry passengers on rivers in Europe, Russia, Africa, Vietnam and Cambodia and Myanmar.