Purpose This article tackles Croatian public diplomacy, destination and nation branding vis-à-vis an emerging Instagram trend to publish dark tourism related pictures sometimes using the official hashtag CroatiaFullOfLife; hence, poking Croatia tourism development accounts, which promote the country as merely a Riviera destination, and deletes the memories of Yugoslavian and Second Independence wars. Such a monolithic, shortsighted and amnesic destination branding strategy neglects alternative public tourism and public diplomacy opportunities. Design/methodology/approach The article may improve the understanding of the links between the concepts of Public Diplomacy, nation and destination branding through an exploratory study of dark tourism amateurs experiences in Croatia, documented by pictures published on Instagram, the key digital social media for destination branding. It also outlines the history of Croatian tourism and government's efforts in promoting the overwhelming image of a sunny sea destination since the launching of the “Croatia Full Of Life” destination branding campaign in 2015. The study compares what and how dark tourism amateurs and Croatian main social media influencers publish contents destined to foreign publics. Findings Croatia's official PR strategies and Instagram accounts ignore the increasing interest of foreign tourists, local younger generations and artists in abandoned places and Yugoslavian and Homeland War heritage monuments. These “light dark chiaroscuro” places are nowhere to be seen on Croatia's official Instagram account. Croatian government fails to embrace some aspects of the nation identity and to take advantage of Instagram trends and niche dark tourism influencers to boost and enrich its public diplomacy and the memorialization process of the darkest aspects of its past. Originality/value This research suggests that international Instagram influencers as well as local photographers, artists and history amateurs promote many shades of light–dark chiaroscuro tourism approaches. Their posts tell new narratives about the past and its memorialization, far from the silence and denial promoted by Croatian official Instagram accounts. Mainstream IG Croatian lifestyle marketing influencers and institutional accounts consistently shows beaches, blue waters and bikinis strictly respecting a monolithic, shortsighted and amnesic destination branding strategy. This study shows that some destination and nation-branding strategies could hinder rather than enhance public diplomacy.