Hello! It's exciting that you are planning to visit various places around Singapore such as Yio Chu Kang, Bukit Mandai Village, Chye Kay, Boon Lay, and Chia Keng. Here are some travel tips to consider for your journey.

Best Time to Visit:
The best time to visit Singapore would be anytime between February to April, the months between the summers and winters when the weather is quite pleasant.

Route and Accessibility:
You can reach Singapore via a direct flight from most major international cities. Singapore has an excellent public transportation system - the Mass Rapid Transit (MRT) that connects all major attractions. Inter-city buses and cabs are also available easily.

Accommodation and Booking:
Singapore offers a variety of accommodations as per different budgets. I recommend booking wisely in advance through reliable websites like Booking.com, Expedia, or Airbnb to grab the best deals.

Clothing and Essentials:
Considering the humid and hot weather, light, breathable clothes are ideal. Don't forget to carry an umbrella or raincoat as sudden showers are common. A water bottle, sunscreen and comfortable footwear are also must haves.

Health and Safety:
Singapore is known for its cleanliness and safety. Regular vaccinations as per your home country's guidelines are sufficient. Always have a travel insurance for unexpected situations. Stay hydrated and keep a regular check on your health in the hot and humid climate.

Local Etiquette and Respect:
Singaporeans are generally reserved and polite. It's important to show respect for local customs. Eating on public transport and littering are heavily fined, so please avoid these.