Build a historical voyage
Combine a curated route, compatible vessel, conditions, people aboard and provisioning assumptions.
Build a voyageTools and interactive experiences
Explore sea travel through calculations, routes, ships and cargo
The tools connect historical evidence with practical questions: how far a voyage ran, how long it might take, which vessel suited it, what cargo moved and how winds or navigation shaped the journey.
Flagship historical experiences
Historical voyage case studies
Follow reconstructed journeys such as Muziris to Berenike, Nagapattinam to Srivijaya and Kilwa to Arabia.
Follow a voyageMaritime Trade Goods Explorer
Trace pepper, pearls, silk, ceramics, textiles, grain, aromatics and other cargo through route systems and ports.
Explore trade goodsHistorical route explorer
Filter the expanded maritime route dataset by region and purpose and see representative ports, cargo and conditions.
Explore routesShip comparison engine
Compare historical vessel families by purpose, construction, propulsion, navigation context and design tradeoffs.
Compare shipsVoyage calculations
Nautical distance converter
Convert nautical miles, kilometres, statute miles and metres using exact modern relationships.
Convert distanceVoyage-time calculator
Estimate time under way from distance, average speed and sailing hours per day.
Estimate voyage timeHistorical sailing-time estimator
Use broad vessel scenarios and conditions to generate a range instead of a false exact historical arrival time.
Estimate historical sailing timeVoyage provisions estimator
See how people aboard, voyage duration and assumed daily allowances change water and food storage requirements.
Estimate provisionsNavigation and learning
Celestial navigation simulator
Use a simplified Polaris observation to understand the relationship between celestial altitude and northern latitude.
Try celestial navigationPolynesian wayfinding explorer
Weigh simplified star, swell and bird clues together to understand environmental navigation.
Try wayfindingMaritime quizzes
Test sea geography and use the historical traveller quiz to enter deeper maritime-history clusters.
Browse quizzesModern passenger travel
Cruise packing generator
Create a practical checklist from duration, climate and planned activities.
Build a packing listSea-motion comfort planner
Review non-medical factors that influence how noticeable vessel movement may feel.
Review trip factors