Location A/Location A at Seaside of Luzui Heights: It is located on the beach of Tai Shui Hang Bay. Most of the time is dominated by waves and birds sounds. It presents a natural soundscape with waves crashing on rocks and seabirds soaring.

Surrounding main wildlife: seabirds.

Acoustic characteristics of weekday sounds:LAeq is around 60dB, coexistence of high, middle and low frequency sounds with weak rhythm over time. For high frequency sounds, left and right ear hearing thresholds is different, which implies the high-frequency sound is directive one.

Location D/Location D at Seaside of Luzui Heights: It is located on the beach of Tai Shui Hang Bay. Most of the time is dominated by waves, wind, flowing water sounds. It presents a natural soundscape of waves lapping on the shore and hitting the reef.

Surrounding main wildlife: seabirds.

Acoustic characteristics of weekday sounds: LAeq is between 60dB and 70dB, with more middle and high frequency sounds with strong fluctuations. Overall, the sound is unidirectional.