Hey Ula guidesLisbon travel guidesHomeGuidesEuropePortugalLisbonThe Oceanário at Parque das Nações and a monument in Belém with under-12s free.Family travelLisbon · With kidsLisbon with kids: things to doOceanário time-slot prices, CARRIS and metro child rules, Padrão under-12s and the physical Lisboa Card: a sourced family shortlist for Lisbon.