Trasa jest co prawda krótka, ale podejście jest wymagające.

It is a very common Polish pattern meaning something like:

• it is true that ..., but ...
• admittedly ..., but ...
• granted ..., but ...

So Trasa jest co prawda krótka, ale podejście jest wymagające means:

• The route is admittedly short, but the ascent is demanding.

The phrase sets up a contrast: the first part is true, but the second part limits or balances it.

Because krótka has to agree with trasa.

• trasa is a feminine noun
• adjectives in Polish must match the noun in gender, number, and case

So:

• krótki = masculine
• krótka = feminine
• krótkie = neuter

Since trasa is feminine singular, we say krótka trasa or trasa jest krótka.

Because it agrees with podejście, which is neuter.

So the adjective forms are:

• wymagający = masculine
• wymagająca = feminine
• wymagające = neuter

Since podejście is a neuter noun, the correct form is wymagające.

In this context, podejście means the ascent, uphill approach, or the climb up to somewhere.

It does not mean approach in the abstract sense here, like an approach to a problem.

In hiking or mountain contexts, podejście often refers to the uphill section, especially one that takes effort.

So the sentence is basically saying:

• the route itself is not long,
• but the uphill part is tough.

Not exactly. Wymagający / wymagająca / wymagające means demanding, challenging, or requiring effort.

That is a little different from simply difficult.

For example:

• trudny = difficult
• wymagający = demanding, requiring stamina/effort/skill

In a hiking sentence, wymagające podejście suggests:

• physically tiring,
• steep,
• effortful,
• maybe not technically impossible, but definitely not easy.

Yes, jest is used twice because each clause has its own predicate:

• Trasa jest ...
• podejście jest ...

This is completely normal and natural.

You usually would not omit the second jest here in standard Polish. Keeping both makes the sentence clear and balanced.

So this structure is the most natural:

• Trasa jest co prawda krótka, ale podejście jest wymagające.

Yes. Polish word order is fairly flexible, and this sentence could be rearranged without changing the basic meaning.

For example:

• Co prawda trasa jest krótka, ale podejście jest wymagające.
• Trasa co prawda jest krótka, ale podejście jest wymagające.

All of these are possible. The version you were given sounds natural and neutral.

The placement of co prawda can shift slightly depending on emphasis, but it still connects to the first clause and prepares for the contrast with ale.

Very often, yes.

Co prawda sets up a concession, and ale introduces the contrasting point. Together they form a very common pair.

Examples:

• Jest co prawda młody, ale bardzo doświadczony.
  He is admittedly young, but very experienced.

• To co prawda daleko, ale warto.
  It’s true that it’s far, but it’s worth it.

Sometimes co prawda can appear without ale, but in this kind of sentence they are very commonly paired.

Both are in the nominative case because they are the subjects of their clauses.

• Trasa jest krótka.
• Podejście jest wymagające.

In Polish, after być (to be) in a sentence like this, the subject is nominative, and the adjective agrees with it.

So:

• trasa — nominative singular feminine
• podejście — nominative singular neuter

Because Polish does not have articles.

English distinguishes between:

• a route
• the route

Polish simply says:

• trasa

The exact meaning depends on context. So trasa can mean:

• a route
• the route

and the listener understands from the situation what is meant.

Not exactly, though they can overlap in hiking contexts.

• trasa = route, course, itinerary, path of travel in a broad sense
• szlak = trail, especially a marked hiking trail

So:

• trasa is more general
• szlak is more specifically a trail

In a mountain or hiking description, trasa may refer to the whole route, while podejście refers specifically to the uphill section.

It sounds neutral to slightly polished.

The phrase co prawda ... ale ... is very normal and common, but it feels a bit more structured than very casual speech. You could easily see this sentence in:

• a guidebook
• a travel blog
• a hike description
• spoken commentary

It does not sound stiff or unnatural—just clear and well phrased.

A useful clue is the ending -e in the dictionary form podejście, which usually signals a neuter noun.

Many Polish neuter nouns end in:

• -o
• -e
• -ę

So podejście is neuter, which is why we get:

• podejście jest wymagające

That said, the safest way is always to learn nouns together with their gender.