When Union Steamship Company bought the land from Captain Cates, they quickly began adding amenities to the land. In 1922, 7 cottages were built around the hotel, adding to the 28 already standing between the hotel and tennis courts. By this time, there was 180 cottages in forest between Snug Cove and Deep Bay, and in 1928, 20 more were built in Davies' orchard. Advertisments for the hotel grounds boast of 1000 acres with 6 picnic grounds and a dance pavilion. In 1924, the ship the Lady Alexandra from Scotland left a legacy at Deep Bay by dumping her ballast of sand at what is now known as 'Sandy Beach'. On summer weekends, it was not unusual for 5000 people to day-trip to the island. The union steamship store, now library, was built during this period. The land on the south-eastern side was consumed with day-trippers and holiday-makers using Bowen's land as a paradise escape from the city.

1920 – 1940: Union Steamship Grounds, Mt Strahan Lodge.
1920 – 1940: Union Steamship Grounds, Mt Strahan Lodge.
1937: Union Estates Map
1937: Union Estates Map