Baía de Nossa Senhora da Esperança Wetland Ecological Viewing Zone is located at the west of the water body opposite the Taipa Houses-Museum. Occupying an area of 4,500 square metres, it is one of the important wetland ecological zones in Macao. The viewing zone derives its name from its proximity to Estrada da Baía de Nossa Senhora da Esperança.
In November 2010, the IAM discovered that the roadside along the reed field had been invaded by an exotic plant called Mikania micrantha Kunth, one of the top 100 most harmful invasive plants in the world. To completely restore the affected area and to avoid the entire ecological structure at the Taipa Houses-Museum from being invaded and affected by Mikania, with the aim of further optimising the landscape in this zone and improving its ecological and tourism value, IAM uprooted all the invasive Mikania in December 2010 and built five interconnecting ecological ponds of different sizes along the roadside of Estrada da Baía de Nossa Senhora da Esperança. In addition, a variety of plants were planted, including lotus, a plant highly representative of the beauty of Macao, and other aquatic plants such as water lily, pickerelweed, field-bank galingale, umbrella plant, Saururus chinensis, as well as shrubs such as sweet osmanthus, crape myrtle and Allamanda schottii for decoration. Since then, the prototype of this ecological viewing zone has been formed. It has also been added with various recreational facilities, including wooden benches, a shelter made of Cissus sicyoides and bougainvillea plus a bamboo screen. Hence, while appreciating and feeling the natural beauty of the environment, residents can use the naturally-styled facilities to enjoy the nature.
Moreover, visitors can view the Portuguese buildings of the Taipa Houses-Museum, one of the top ten most beautiful scenic spots in Macao. At night, visitors can hear the croaking of different frogs, such as Asian common toads and Gunther's frogs, which resembles the performance of natural music. According to the finding of the field survey conducted by IAM on 18 April 2011, dozens of fireflies were found in the reed field, which were rarely seen in Macao.
To enable residents and tourists to have a closer look and a better understanding of the ecological environment of the Taipa Houses-Museum, as well as to make a close contact with the fireflies, IAM built a path in the reed field next to the ecological ponds in June 2012. The path is paved with wood in order to create a sense of natural beauty, and next to it more than ten lotus ponds have been added. As such, visitors can admire the lotuses and fireflies during their visit of the reed field. Hence, the ecological viewing zone is suitable for a visit by the whole family and ecology lessons.