FOREST SCHOOL AND SCOUT PARADE
The Croatian scouts have recognised the advantages of the fields located below the Hunting Lodge. Thus, the Croatian Scouts Association has organised Forest School and camping at Petrova gora every summer since 2008. The meadows along the Radonja stream spread from east to west, which ensures they are exposed to sunlight all day long. In 2010, they organised the 9th Croatian Scouts Association Parade, which, beside the local scouts, also welcomed guests from Czech Republic, Iceland and Macedonia. The parade was held from 23 June to 1 August, with 800 participants, and was opened by the Minister of Defence Branko Vukelić.

PANNONIAN BICYCLE MARATHON
The Hunting Lodge hosted both the 1st and 2nd Pannonian Bicycle Marathons. The participants travelled through eight counties: Karlovac, Sisak-Moslavina, Bjelovar-Bilogora, Virovitica-Podravina, Požega-Slavonia, Brod-Posavina, Osijek-Baranja and Vukovar-Srijem counties, which, all together constitute the region of Pannonia.
The first marathon included a stop at Muljava on 28 September 2009 and the second on 26 June 2010.

MUSHROOM FESTIVAL – „GLJIVARIJADA“
Since 2008, the Mushroom Society of Karlovac has been organising gatherings of mushroom growers from Croatia and the neighbouring countries at Muljava, within the Mushroom growers’ week. The first gathering was organised on 4 October 2008, the second on 3 October 2009, and the third on 2 October 2010.

INTERNATIONAL RACE "KRALJ (KING) PETAR SVAČIĆ"
So far, Hrvatske šume d.o.o. UŠP Karlovac (Croatian Forests Ltd. , Forest Management Service Karlovac) and the Croatian Forestry Association, branch Karlovac have organised three international road races named "Kralj (King) Petar Svačić", along the road from Vojnić to the Hunting Lodge Muljava, 9 km in length. Most of the participants were Croatian, however, there were people from the neighbouring countries as well – Bosnia and Herzegovina, Slovenia, Serbia, Austria and Hungary.  
The first race was held on 15 May 2008, the second 3 October 2009 and the third on 9 October 2010.

3D ARCHERY
Next to the Hunting Lodge there is a 3D archery trail. The trail was the venue for the CRO 3D cup finals in 2009, which was an open charity tournament with the aim to help a sick boy Jakov Rubido from Karlovac. The trail is maintained by the members of the Archery Club "Muljava". In addition, a few times, the Croatian 3D archery representation (national team) had their trainings on the slopes around the Hunting Lodge.

TEAM BUILDING
The area around the Hunting Lodge Muljava is used by various companies and associations for team building and gatherings. So far, Muljava welcomed Hrvatske šume d.o.o. UŠP Karlovac and their Šumarijada (Forest Festival), HEP Elektra Karlovac and their Elektrijada (Electricity Festival), Karlovačka pivovara and their Dani sporta i druženja (Sports and Socialising Days), Koordinacija branitelja Karlovačke županije (the Coordination of the Karlovac County Veterans) and  the Work Therapy and Rehabilitation Centre Nada.