Of course! Geres and Arouca are beautiful destinations located in Portugal, they offer fantastic nature experiences. Here are some travel tips to assist you:

Best Time to Visit:
The best time to visit these regions depends on the activities you plan on doing. For hiking and outdoor activities, the comfortable seasons are Spring(April - June) and Autumn (September - November).

Route and Accessibility:
For Geres, you can use the Braga - Terras de Bouro route and continue until you reach the Peneda-Geres National Park. For Arouca, accessible from Porto is about 60 minutes by car via the A32. Arouca Geopark and the famous 516 Arouca Suspension Bridge would be the main attraction.

Altitude and Acclimatization:
While these areas aren't at a very high altitude, ensure you prepare for your trips appropriately, particularly if you're hiking or doing other physical activities.

Accommodation and Booking:
Accommodations are plentiful with options ranging from guesthouses, hotels to holiday homes. Booking in advance is always a good idea, especially during peak travel season.

Clothing and Essentials:
Dress comfortably. If you're planning on hiking, ensure you have durable footwear. Bring sunscreen, a hat, a water bottle, and perhaps a picnic to enjoy amid Geres and Arouca's natural beauties.

Health and Safety:
Carry a basic first aid kit with you. Keep an eye out for local wildlife and follow any posted warnings or guidelines. Make sure to have health insurance that covers any potential incidents.

Local Etiquette and Respect:
Ensure to respect the important natural habitats and historical sights in these areas. Always keep to designated trails, especially when hiking. Portuguese people really appreciate when foreign visitors make an effort to learn some phrases in their language!

In the end, Geres and Arouca are made for enjoying nature, so make sure you prepare to relax and absorb the beautiful surroundings!