The number of visitors to Tokyo Disneyland and Tokyo DisneySea amusement parks increased for the first time in three years in the fiscal year that ended March 31, helped by new attractions and special events, operator Oriental Land Co. said Monday.

The number of visitors grew 0.3 percent from a year before to 30.10 million, according to the company, which hopes to step up efforts to attract more customers in the current fiscal year that marks the 35th anniversary since the opening of Tokyo Disneyland.

The operator attributed the rise to a new indoor attraction at Tokyo DisneySea that features popular fish characters from the movies "Finding Nemo" and "Finding Dory," which opened in May last year, and special events organized in the summer.

A Christmas event to light up the Cinderella Castle at Tokyo Disneyland with projection mapping technology was also popular, the company said.

Tokyo Disneyland, located in Urayasu, Chiba Prefecture, near Tokyo, opened in April 1983. Tokyo DisneySea opened next to it in September 2001.

The parks drew a record-high 31.38 million visitors in fiscal 2014 due to events featuring the hit movie "Frozen" but have since not been successful in attracting as many customers.