Летом мы часто ездим на дачу.

Летом is the instrumental case of лето and here it means in summer / during the summer.

Russian often uses the instrumental case without a preposition for seasons and some time expressions:

• зимой = in winter
• весной = in spring
• летом = in summer
• осенью = in autumn

So Летом мы часто ездим на дачу is the normal way to say In summer, we often go to the dacha.

You can say в лето in some special contexts, but not for the ordinary meaning in summer.

This is a very common Russian question because it involves verbs of motion.

• ехать / ехать → едем = going right now, in one direction, usually as a single trip
• ездить → ездим = going regularly, repeatedly, habitually, or in different directions

In this sentence, часто (often) shows a repeated action, so Russian uses ездим, not едем.

Compare:

• Мы едем на дачу. = We are going to the dacha (now / on this trip).
• Мы часто ездим на дачу. = We often go to the dacha.

In Russian, the present tense is often used for habitual actions, just like in English:

• We often go...
• Мы часто ездим...

So ездим here means we go regularly / we tend to go, not necessarily we are going at this exact moment.

Because ездить is an imperfective verb, it works well for repeated or habitual actions.

This is mostly an idiomatic Russian pattern.

Russian says:

• на дачу = to the dacha
• на даче = at the dacha

Even though a dacha is a building/place, Russian treats it as a destination with на, not в, in this common expression.

This is something you largely have to memorize:

• ехать на дачу
• быть на даче
• жить на даче летом

So even if English uses to, Russian specifically uses на here.

Because after на when it shows movement toward a destination, Russian uses the accusative case.

• dictionary form: дача
• accusative singular: дачу

So:

• на дачу = to the dacha
• на даче = at the dacha

This is the same location-vs-motion contrast seen in many Russian prepositional patterns:

• в школу = to school
• в школе = at/in school

Usually, yes: ездить is the motion verb typically used for traveling by vehicle or, more broadly, for trips where transport is involved.

That said, in real life, ездить на дачу is a fixed, very common expression, and speakers may use it even if the exact mode of travel is not important.

Very roughly:

• ходить = go on foot, regularly
• ездить = go by transport, regularly

So мы часто ездим на дачу suggests repeated trips, often by car, train, bus, etc.

Yes. Russian often drops subject pronouns when they are clear from the verb ending.

• Ездим на дачу. = We go to the dacha.
• Мы ездим на дачу. = We go to the dacha.

The ending -им in ездим already tells you it is we.

However, мы may still be included for:

• emphasis
• clarity
• contrast

For example:

• Летом мы часто ездим на дачу, а зимой остаёмся в городе.
  In summer we often go to the dacha, but in winter we stay in the city.

Yes. Russian word order is fairly flexible, though not completely free.

The neutral sentence is:

• Летом мы часто ездим на дачу.

But you could also hear:

• Мы летом часто ездим на дачу.
• Мы часто ездим на дачу летом.

The basic meaning stays the same, but the focus can shift slightly.

For example:

• Летом at the beginning highlights the time frame: In summer...
• часто before the verb naturally emphasizes the frequency
• putting на дачу later keeps the destination in its usual place

So the original sentence sounds very natural and neutral.

A дача is a very culturally specific Russian word. It usually means a country house, summer house, or weekend cottage, often with a small garden or plot of land.

For many Russian speakers, going на дачу means:

• leaving the city
• spending weekends or summers outside town
• gardening, relaxing, or staying with family

So even if the English translation says country house or summer house, the Russian word дача carries its own cultural associations.

Because часто is an adverb of frequency (often), and in Russian it commonly goes before the verb it modifies:

• часто ездим = often go

This is the most natural placement in a neutral sentence.

You may sometimes see other orders for emphasis, but мы часто ездим is the standard pattern.

The stressed syllables are:

• Ле́том
• мы
• ча́сто
• е́здим
• на
• да́чу

So one helpful pronunciation guide is:

ЛЕ-том мы ЧАС-та ЕЗ-дим на ДА-чу

A rough English-style approximation: LYE-tam my CHAS-ta YEZ-deem na DA-chew

A few notes:

• е at the start of ездим sounds like ye
• unstressed о is reduced, so летом does not sound like a fully clear o
• ч in часто is like ch in church

Usually the safest translation is simply we often go to the dacha in summer.

Russian ездить does not always mean drive oneself. It means go/travel by transport in a broad sense. Depending on context, it could imply:

• driving
• taking a train
• going by bus
• traveling there regularly in general

So unless the context specifically mentions a car, avoid translating it too narrowly as drive.