Tourists watch seals near Duiker Island in South Africa

This photo taken on Feb. 15. 2023 shows a seal-watching boat in Hout Bay in Cape Town, South Africa. Duiker Island is renowned for its high population of seals. (Xinhua/Zhang Yudong)

Seals swim near Duiker Island in Cape Town, South Africa, Feb. 15. 2023. Duiker Island is renowned for its high population of seals. (Xinhua/Zhang Yudong)

Seals are pictured on Duiker Island in Cape Town, South Africa, Feb. 15. 2023. Duiker Island is renowned for its high population of seals. (Xinhua/Zhang Yudong)

Seals are pictured on Duiker Island in Cape Town, South Africa, Feb. 15. 2023. Duiker Island is renowned for its high population of seals. (Xinhua/Zhang Yudong)

Seals are pictured on Duiker Island in Cape Town, South Africa, Feb. 15. 2023. Duiker Island is renowned for its high population of seals. (Xinhua/Zhang Yudong)

Seals are pictured on Duiker Island in Cape Town, South Africa, Feb. 15. 2023. Duiker Island is renowned for its high population of seals. (Xinhua/Zhang Yudong)

A tourist watches seals on a boat near Duiker Island in Cape Town, South Africa, Feb. 15. 2023. Duiker Island is renowned for its high population of seals. (Xinhua/Zhang Yudong)

Tourists take a boat to watch seals on Duiker Island in Cape Town, South Africa, Feb. 15. 2023. Duiker Island is renowned for its high population of seals. (Xinhua/Zhang Yudong)

Tourists watch seals on a boat near Duiker Island in Cape Town, South Africa, Feb. 15. 2023. Duiker Island is renowned for its high population of seals. (Xinhua/Zhang Yudong)