Crusader Kings III 1.20.0.3

Activities

All 23 activities a ruler can host — what each one's options give in the game's own words, the intents you can pick, how many guests come, the cooldown and the paintings each plays in.

• Blótup to 50 guests · cost: prestigeIt is high time that all … comes together to make sacrifice to …. These rituals not only bind the faithful together, they confirm my place as … of all the land.
• Camp Revelryup to 50 guests · 2-year cooldown · cost: gold · Roads to PowerHold a small celebration at your camp, funded by Gold but modified by your stocks of Provisions. Invitees will include everyone from the camp, plus optionally local rulers.
• Capital Examinationup to 1 guests · 5-year cooldown · cost: treasury · All Under HeavenIt is our honor and duty to uphold the structure and arrange these examinations. They allow us to evaluate, determine and award Merit to the most suited individuals — to ensure the future prosperity of the realm.
• Chariot Raceup to 300 guests · 10-year cooldown · cost: gold · Roads to PowerAs the …, I alone may hold spectacular chariot races to thrill the … and draw the notables of the … to the capital.
• Coronationup to 200 guests · 3-year cooldown · cost: gold / treasury / herdInvite the great and powerful of the realm to witness your ascension to the throne. This will forge the foundations for a long and successful rule.
• Debateup to 100 guests · 5-year cooldown · cost: gold · All Under HeavenMerit, influence, power — These matter little if you are incapable of putting forth valid arguments for you and your cause.
• Ecumenical Councilup to 100 guests · 25-year cooldown · cost: treasury / gold · By God AloneSummon the great prelates and rulers of Christendom! Our goal shall be to unify belief and practice, all the better to glorify ….
• Feastup to 40 guests · 5-year cooldown · cost: gold / treasury / piety / barter goodsStrengthen bonds of loyalty by inviting vassals and neighbors into your halls to eat, drink, and be merry!
• Festivalup to 50 guests · 5-year cooldown · cost: gold · All Under HeavenFestivals are opportunities for the people to deepen their connections with their heritage and the divine, and for their rulers to display magnanimity and reinforce their authority.
• Funeralup to 40 guests · 5-year cooldown · cost: gold · Legends of the DeadAssemble the weeping realm for a Funeral, a chance to give a proper sendoff to a venerated member of the nobility.
• Grand Riteup to 30 guests · cost: goldTrue followers with the Witch Trait are invited to celebrate the might of …, and delve deep into the mysteries.
• Grand Tourup to 100 guests · 10-year cooldown · cost: gold / treasury · Tours and TournamentsHost a magnificent Tour and pay a visit to your Vassals and their lands. Each Stop will have a 2 months duration.
• Grand Tournamentup to 250 guests · 10-year cooldown · cost: gold / treasury · Tours and TournamentsHost a magnificent set of martial or cultural Contests, attracting contenders from near and far to compete in hastiludes for Prizes and Prestige.
• Grand Weddingup to 80 guests · cost: gold · Tours and TournamentsA grandiose celebration of the union of a couple.
• Hikeup to 1 guests · cost: goldSet out on a solitary expedition to the hidden corners of the realm. This adventure provides a break from the pressures of courtly existence, giving you the opportunity to rest amid age-old forests and gentle hills.
• Huntup to 20 guests · 2-year cooldown · cost: herd / gold / treasury / piety
• Inspectionup to 20 guests · 2-year cooldown · cost: gold / treasury / pietyPerform a thorough inspection of your lands to ensure your realm is a well-running machine, and look for opportunities to improve upon the current bureaucracy and situation.
• Local Examinationup to 1 guests · 3-year cooldown · cost: treasury / gold · All Under HeavenIt is our honor and duty to uphold the structure and arrange these examinations. They allow us to evaluate, determine and award Merit to the most suited individuals — to ensure the future prosperity of the realm.
• Meet Peersup to 30 guests · cost: goldInviting every small lord and lady in the realm, below the age of …, to enjoy themselves in the company of other children is a liberating and fun experience!
• Monument Expeditionup to 200 guests · 3-year cooldown · cost: goldUndertake an expedition to a famous monument or landmark to improve yourself by delving into the history, knowledge, and mysteries that dwell there.
• Pilgrimageup to 30 guests · cost: gold / treasuryCharacters of most Faiths can choose to undertake an Activity to go on a Pilgrimage to a Holy Site. Each Holy Site has an individual grace period before you can revisit.
• The Investiture Councilup to 100 guests · cost: gold · By God AloneA council convened at the close of the The Christian Church to settle, once and for all, who shall invest the clergy: the Church or the crown.
• University Visitup to 20 guests · 20-year cooldown · cost: treasury / gold / pietySpend a semester at a renowned center of studies, learning from the wisest minds of the land.

Source: game/common/activities (activity types, intents) and the English localisation, Crusader Kings III 1.20.0.3. Cooldowns are the base years their script values start from; costs are scripts, listed here by the currencies they use (each page shows the script).