каспия

каспия

"Каспия" refers to the Caspian Sea.

Here, "Каспия" is used as the genitive case of "Каспий" to indicate possession or affiliation in the phrase "география Каспия".

Я изучаю географию Каспия.

I am studying the geography of Caspian.

In this sentence, "Каспия" again appears in the genitive case to describe the location "на побережье Каспия" indicating "on the coast of the Caspian Sea".

На побережье Каспия часто встречаются тюлени.

Seals are often found on the coast of Caspian.

Чистота воды Каспия привлекает туристов.

The cleanliness of Caspian's water attracts tourists.