In Croatia Goa trance scene grew rapidly in last decade, especially party-wise (in recent couple of years). Of course, it's not on the same level regarding the popularity as it's case in Belgium, but during the year you got basiclly every month Goa events. The biggest epicentre of parties is capital Zagreb, but nearby cities of Sisak and Novi Marof also got strong local scenes and organizations who are taking good care to bring nice live-acts alongside with local DJ's. There are also some parties in western part of the country in city of Rijeka and from time to time in southern region of Dalmatia (Split and Zadar).
Personally the biggest pros when it comes to Croatia is the really stunning nature and remote places where you can organize parties and trully enjoy outdoors, it's also one of the reasons why every summer you got really outstanding party season in Croatia, especially when it comes to festivals (from techno and house events being very popular at Adriatic seaside, but also psytrance in general where you got one of the best psytrance festivals Modem in Lika region). Of course, festivals with Goa artists are much smaller (compared to ZNA, Apsara, Connection), but they are on the healthy legs and what matters they are improving in terms of quality, organization, content and attendance.
Autumn and winter season is also getting better and more and more young people are involving themselves in promotion of Goa trance music and getting some artists to come and play in Croatia. What is also noticable is the fact that audience on these parties are young people who are raised and introduced to Goa through the great work of artists and labels representing the 2nd wave of Goa music, which is a great thing.
Overall, in my humble opinion Croatia got a lot of potential that hasn't been used fully to become a true summer Goa-trance hotspot, especially because electronic music events recently are getting recognition from the tourist boards and the local-goverments now got more understanding for this type of entertainment. Other potential is the stunning nature, from mountains, forests, rivers and Adriatic sea you really can choose and find perfect spot to held a festival. Prices in Croatia are still okay to most of the western tourists/visitors and you can spend nice holidays here without being bankrupted. However I believe we should have long-term strategy in that field and keep our prices fair.
The negative aspect is I believe the same as it is in the most countries, the drugs and alcohole, but I hope that would change too, because music should be the only drug when it comes to Goa trance. The other negative aspect is the bare fact that average monthly net salary in Croatia is 700 euros, even tho I believe Zagreb area keeps that stats, other regions especially where I live and in eastern regions of Slavonia and Baranja are more like 400-500 euros. That being said, it's hard for Croatian organizers to get some 'bigger' names, especially because you can't have high ticket prices.
Anyway, here are two smaller festivals next summer in Croatia where Goa music will be played that I know about:
Mystic Mountain Festival (at Velebit mountain): https://www.facebook.com/events/1905858349511059/
Dragon's Quest Festival (Gračac, Lika region, where Lost Theory took place): https://www.facebook.com/events/228971744405176/