syuuten de oritara, eki mae ni sizukana kafe ga arimasita.

終点 means the last stop, the end of the line, or the terminal stop.

In a train or bus context, it refers to the place where the route ends. So 終点で降りたら means something like when I got off at the last stop.

Here, で marks the place where the action happens.

So in 終点で降りたら, the action is 降りた = got off, and 終点で tells you where that happened: at the last stop.

A learner might expect に because it often marks a destination, but with verbs like 降りる, で is commonly used to show the place where you get off.

• 駅で降りる = get off at the station
• 次のバス停で降ります = I’ll get off at the next bus stop

降りたら is the たら-form of 降りる.

It can mean:

• if someone gets off
• when someone gets off
• after someone gets off

In this sentence, it does not sound like a hypothetical if. It sounds like a real sequence of events:

1. got off at the last stop
2. there was a quiet café in front of the station

So the most natural sense here is when/after I got off.

Japanese often leaves the subject unstated when it is obvious from context.

In this sentence, there is no explicit I, we, or they, but English would usually supply one from context, often I:

• When I got off at the last stop, there was a quiet café in front of the station.

This is very normal in Japanese. If the speaker and the listener can already tell who is being talked about, Japanese often omits the subject entirely.

駅前 is a very common compound noun meaning in front of the station or the area in front of the station.

• 駅 = station
• 前 = front / before

So 駅前 is not just a literal phrase; it is almost like a set expression meaning the station-front area.

Compare:

• 駅前にカフェがある = There is a café in front of the station / in the station-front area
• 駅の前にカフェがある = There is a café directly in front of the station

Both can work, but 駅前 often sounds more like a location name or area, while 駅の前 is more literally right in front of the station.

The particle に marks the location of existence with verbs like:

• ある for non-living things
• いる for living things

Since the sentence says a café exists/is located in front of the station, Japanese uses:

• 駅前に = in front of the station
• カフェがありました = there was a café

This is a very common pattern:

• 場所に + ものがある
• 場所に + 人/動物がいる

So:

• 公園にベンチがある = There is a bench in the park
• 部屋に猫がいる = There is a cat in the room

Because 静か is a な-adjective, not an い-adjective.

So when it directly modifies a noun, it takes な:

• 静かなカフェ = a quiet café
• きれいな町 = a pretty town

By contrast, true い-adjectives do not use な:

• 大きい家 = a big house
• 新しい本 = a new book

Even though 静か ends in か, it is still a な-adjective.

In 駅前に静かなカフェがありました, が marks the thing that exists: the café.

With ある / いる, the thing that exists is very often marked by が:

• 机の上に本がある = There is a book on the desk
• 公園に子どもがいる = There is a child in the park

So here:

• 駅前に = in front of the station
• 静かなカフェが = a quiet café
• ありました = existed / was there

Using が makes it sound like the café is being newly noticed or introduced into the conversation.

Japanese uses:

• ある for non-living things
• いる for living things

A café is a non-living thing, so Japanese uses ある.

• カフェがありました = There was a café
• 人がいました = There was a person

Even though a café is a place people use, grammatically it is still treated as a non-living thing.

Because the sentence is describing what the speaker found or noticed at that time.

So ありました means there was rather than there is.

The sequence is:

1. the speaker got off at the last stop
2. at that time, there was a quiet café in front of the station

If the speaker were describing it as a general fact right now, they might say:

• 駅前に静かなカフェがあります = There is a quiet café in front of the station

But ありました fits a past experience or narration better.

The sentence breaks down like this:

• 終点で降りたら、 = when/after I got off at the last stop,
• 駅前に = in front of the station
• 静かなカフェが = a quiet café
• ありました = there was

So the full structure is:

[When/after X happened], [at location], [thing] existed.

A natural English rendering would be:

When I got off at the last stop, there was a quiet café in front of the station.

Japanese often puts the background action first, then the place, then the thing that existed, and finally the verb.

Grammatically, yes, たら can mean if. But in this sentence, if is probably not the best interpretation.

Because the second part describes something the speaker actually encountered, the meaning is more naturally:

• when I got off
• after I got off

If you translated it as if I get off at the last stop, there is a quiet café in front of the station, that would sound more like a general instruction or recommendation. This sentence sounds more like a past event that really happened.

The comma is not absolutely required, but it is very natural.

It helps separate the introductory clause:

• 終点で降りたら、

from the main statement:

• 駅前に静かなカフェがありました。

In writing, commas are often used after a long or meaningful clause to make the sentence easier to read. So here it helps show the pause and the structure clearly.