Final answer:
The city near 30S and 30E is Mbabane, the capital of Eswatini, a city with a moderate climate and mountainous terrain.
Step-by-step explanation:
The city located near 30S and 30E is Mbabane, which is the capital of Eswatini (previously known as Swaziland). Mbabane is situated in the Highveld, the northwestern part of Eswatini, and serves as the administrative and commercial center of the country. The city's location near the intersection of 30 degrees south latitude and 30 degrees east longitude places it in a region characterized by a moderate climate and mountainous terrain.