The site upon which Castle Landing sits today was formerly known as the Most Holy Rosary Presentation Convent. The land was originally owned by the Maher Family until the Roman Catholic Church acquired it in 1952. With the Church’s plan to centralize all parish buildings the construction of a new convent took place. The church appealed to its parishioners for financial support and free labor. With the majority of residents employed at Argentia, and earning above-average wages, Most Holy Rosary Parish received regular generous donations. Numerous American families also made significant contributions, and U.S. Navy officials provided the use  of several pieces of construction equipment free of charge. The convent was constructed between May 1960 and September 1961. The Most Holy Rosary Presentation Convent was officially opened on Friday, September 1, 1961.

In June 1981, the Presentation Sisters left Freshwater. The number of young women entering convents was declining drastically and most of the nuns in outlying areas were  transferred to central convents in larger centers. Upon the departure of the Presentation nuns, the responsibility for education reverted to lay teachers.  In 1982, Holy Rosary Parish Convent was converted into a retreat center for priests and brothers. It was re-named the Edmund Rice Center in honor of the founder of the Christian Brothers. Brother Francis Foran operated the center for 11 years. In July 1993,  Brother Foran was transferred to Placentia and the R.C. Episcopal Corporation put up the former convent for sale.

Today the Convent has been converted into a beautiful inn offering comfortable accomodations and facilities for private retreats, meetings, etc.