The OpenSim journal

Travel guides

Page 9

Practical travel planning and mobile connectivity advice.

More travel guides

Travelers putting carry-on bags through an airport security checkpoint

Airport liquid rules in 2026: 100ml and 2-litre limits

Check 2026 airport liquid rules for the UK, Europe, US and Canada. See where 2-litre containers are allowed and how transfers change the limit.

4 Aug 2026

People waiting at a bus stop in Chester, England

Travel guides

Free bus travel for children in England: August 2026 rules

Check England's August 2026 free child bus rules, eligible ages, participating services, ID, London, cross-border trips, transfers and visitor use.

2 Aug 2026

Power bank, phone and carry-on bag beside an airport gate window

Travel guides

Can you take a power bank on a plane? Rules and Wh calculator

Check 2026 power bank flight rules, convert mAh to Wh, and learn the carry-on, checked bag, onboard use, China CCC and gate-check requirements.

30 Jul 2026

Travelers walking past airport check-in desks and empty queue lanes

Travel guides

EU Entry/Exit System 2026: fingerprints, queues and travel tips

Plan for the EU Entry/Exit System in 2026 with current rules for fingerprints, children, airport queues, connections, Eurostar, transit and the EES app.

29 Jul 2026