MO-S5 Na trati

Who we are

Infantry Blockhouse MO-S5 “Na trati” forms part of the Czechoslovak border fortification system that was built in 1935–1938. The bunker is situated near Starý Bohumín, and is, thus, part of the Moravská Ostrava construction section, sub-section Bohumín.

As far as its construction is concerned, it is an atypical two-sided separate infantry blockhouse of the 3rd degree of resistance, two-storey high. The construction company of Dr Ing Karel Skorkovský from Prague won the public contract for its construction. The concreting works took place in July 1936 and lasted two weeks. Altogether, 4.314 cu m of concrete was used to build the bunker.

Originally, the bunker was equipped with two anti-tank guns and four separate heavy machine guns placed in shooting rooms. This equipment was complemented by a heavy and light machine gun in two infantry bells, three light machine guns placed in auxiliary loopholes and six grenade tubes.

The bunker was manned by soldiers of the 1st Company, I. Battalion of the 4th Border Regiment. Combat crew consisted of 42 soldiers; in peace, the crew was half the size. Additionally, the combat crew was commanded by two officers, and there were three artillery observers.

In 1938, the area of Bohumín was, as part of Cieszyn region, occupied by Poles, and the bunker had a Polish crew. In September 1939, the Poles withdrew without a fight, and Germany acquired the region and the bunker itself. After 1945, the structure was abandoned. Since 1999, the Bohumín Military History Club (KVH Bohumín, z.s.) has been in charge of the bunker.



sausages with you   Action - Nigth visits with toasting of sausages

  On Saturday 31st August We would like to invite you for visiting the object to attend a traditional celebrating of end of the hollidays on MO-S 5 Na trati. The beginning of the action is at 19 h and end is set on 22 h.

What we prepared for you
  • fireplace with possibility to roest your own sousages (or anything else),
  • a unique possibility to see defending trench from inside via emergency exit,
  • film about changes of the fotification,
  • non tradicional sightseeing with "ranger" (hraničářem) - solider who protects the borders,
  • starting of diesel-aggregate (according to the technical possibilities of the machine),
  • attractions for children in military style.
Change of programme is reserved.

We look forward to you Team KVH Bohumín

Opening Hours

Admission fee
Admission for persons over 15 years of age is CZK 50, children under 15 years of age are admitted free of charge (however, they must be accompanied by a paying person). On the first Saturday of the month, the holders of the (Těšínské Slezsko-card) pay for their entry only CZK 40.

In 2019 season, we are open
From April 6th to September 29th and on October 28th on Saturdays, Sundays and public holidays. There are guided tours through the bunker at 2:00, 3:00, 4:00 and 5:00 p.m. Guided tours take approximately 1 hour.

School field trips
When you arrange your visit in advance, the children will pay an admission fee of 20 CZK / person. For every ten children, the accompanying person has free admission.
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Individual visits
Any other terms can be arranged after the previous agreement (at least three days in advance). For an additional 20 CZK / person, it is also possible to arrange entry to the MO-S4 “Šedá vila”.
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Visiting Regulations in PDF

Week 42
28. 10.

How do I get to the bunker


Telephone number

Chairman Ing. Pavel Bílek
+420 604 148 470
Webmaster Bc. Martin Cieslar
+420 732 450 251

Seat of the association / Billing address

Klub vojenské historie, z.s.
Štefánikova 361
Bohumín 73581
Česká republika

IČ: 26519160

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We are part of the following touristic trails: Tachnotrasa and Těšínské Slezsko

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